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Google Keyword Rankings for : how do polymers degrade
1
Polymer Degradation - an overview ... - ScienceDirect.com
https://www.sciencedirect.com/topics/materials-science/polymer-degradation
Polymer degradation describes as a mixture of chemical processes and physical changes, occurring through the processing and storage resulting in the cleavage of ...
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https://www.sciencedirect.com/topics/materials-science/polymer-degradation
Polymer degradation describes as a mixture of chemical processes and physical changes, occurring through the processing and storage resulting in the cleavage of ...
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2
Polymer degradation - Wikipedia
https://en.wikipedia.org/wiki/Polymer_degradation
Polymer degradation is the reduction in the physical properties of a polymer, such as strength, caused by changes in its chemical composition.
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https://en.wikipedia.org/wiki/Polymer_degradation
Polymer degradation is the reduction in the physical properties of a polymer, such as strength, caused by changes in its chemical composition.
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3
What is polymer degradation? - Coolmag
https://coolmag.net/what-is-polymer-degradation/
Polymers will change over time when exposed to UV radiation. These changes are the result of light-induced homolytic fission of chemical bonds ( ...
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https://coolmag.net/what-is-polymer-degradation/
Polymers will change over time when exposed to UV radiation. These changes are the result of light-induced homolytic fission of chemical bonds ( ...
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4
Thermal-Oxidative Degradation of Polymers
https://polymerdatabase.com/polymer%20chemistry/Thermal%20Degradation.html
The degradation of a polymer can be induced by light, heat, oxygen and/or ozone and can be greatly accelerated by stress and exposure to other chemicals.
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https://polymerdatabase.com/polymer%20chemistry/Thermal%20Degradation.html
The degradation of a polymer can be induced by light, heat, oxygen and/or ozone and can be greatly accelerated by stress and exposure to other chemicals.
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5
Polymer degradation: a short review - De Gruyter
https://www.degruyter.com/document/doi/10.1515/cti-2020-0015/html?lang=en
The surface polymer degradation can be effectively studied by using Raman, infrared or special electronic spectroscopy. However, it should be ...
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https://www.degruyter.com/document/doi/10.1515/cti-2020-0015/html?lang=en
The surface polymer degradation can be effectively studied by using Raman, infrared or special electronic spectroscopy. However, it should be ...
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6
Find out how the polymer degradation process happens
https://polyexcel.com.br/en/product-news/find-out-how-the-polymer-degradation-process-happens/
Although undesirable, polymer degradation processes are common. However, do you know how it happens? This can occur due to different types of chemical reactions ...
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https://polyexcel.com.br/en/product-news/find-out-how-the-polymer-degradation-process-happens/
Although undesirable, polymer degradation processes are common. However, do you know how it happens? This can occur due to different types of chemical reactions ...
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7
Degradation of Polymers - AZoM
https://www.azom.com/article.aspx?ArticleID=1655
Factors Affecting Polymer Degradation ... The degradation of plastics can be said to begin as soon as the polymer is synthesised, and is increased ...
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https://www.azom.com/article.aspx?ArticleID=1655
Factors Affecting Polymer Degradation ... The degradation of plastics can be said to begin as soon as the polymer is synthesised, and is increased ...
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8
Microbial and Enzymatic Degradation of Synthetic Plastics
https://www.frontiersin.org/articles/10.3389/fmicb.2020.580709/full
The enzymatic degradation occurs in two stages: adsorption of enzymes on the polymer surface, followed by hydro-peroxidation/hydrolysis of the ...
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https://www.frontiersin.org/articles/10.3389/fmicb.2020.580709/full
The enzymatic degradation occurs in two stages: adsorption of enzymes on the polymer surface, followed by hydro-peroxidation/hydrolysis of the ...
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9
Polymer Degradation: Category, Mechanism and ...
https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/66/e3sconf_icgec2021_01012.pdf
degradation, photodegradation, catalytic degradation, and biodegradation. Generally, energy from heat and light could be absorbed by the chains in polymer, ...
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https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/66/e3sconf_icgec2021_01012.pdf
degradation, photodegradation, catalytic degradation, and biodegradation. Generally, energy from heat and light could be absorbed by the chains in polymer, ...
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10
Degradation Rates of Plastics in the Environment
https://pubs.acs.org/doi/10.1021/acssuschemeng.9b06635
Furthermore, partial polymer degradation can lead to cross-linking and/or crystallization in the amorphous regions adjacent to crystallites, ( ...
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https://pubs.acs.org/doi/10.1021/acssuschemeng.9b06635
Furthermore, partial polymer degradation can lead to cross-linking and/or crystallization in the amorphous regions adjacent to crystallites, ( ...
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11
Degradability of Polymers for Implantable Biomedical Devices
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2769140/
If each bond has equal reactivity, the larger chain would have a higher likelihood of reacting with water and more quickly degrading into smaller chains. For ...
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https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2769140/
If each bond has equal reactivity, the larger chain would have a higher likelihood of reacting with water and more quickly degrading into smaller chains. For ...
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12
The Degradation of Plastics and Polymers (FREE)
https://bioplasticsnews.com/2021/01/25/degradation-plastic/
Chemical Degradation · Depolymerisation turns mono plastic (like PET bottles) back into monomers, which can be re-polymerised into new PET-based ...
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https://bioplasticsnews.com/2021/01/25/degradation-plastic/
Chemical Degradation · Depolymerisation turns mono plastic (like PET bottles) back into monomers, which can be re-polymerised into new PET-based ...
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13
Bioresorbable Polymers: How do they Degrade? - Poly-Med
https://poly-med.com/bioresorbable-polymers-how-do-they-degrade/
The majority of Poly-Med's polymers degrade by a process known as bulk erosion. Bulk erosion occurs when the main mechanism for degradation ...
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https://poly-med.com/bioresorbable-polymers-how-do-they-degrade/
The majority of Poly-Med's polymers degrade by a process known as bulk erosion. Bulk erosion occurs when the main mechanism for degradation ...
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14
Pathways for degradation of plastic polymers floating in the ...
https://pubs.rsc.org/en/content/articlehtml/2015/em/c5em00207a
When heteroatoms are present in the main chain of a polymer, degradation proceeds by photo-oxidation, hydrolysis, and biodegradation.
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https://pubs.rsc.org/en/content/articlehtml/2015/em/c5em00207a
When heteroatoms are present in the main chain of a polymer, degradation proceeds by photo-oxidation, hydrolysis, and biodegradation.
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15
Thermal Degradation of Plastics
http://www.appstate.edu/~clementsjs/polymerproperties/zeus_thermal_degradation.pdf
As a general rule the fluoropolymers do not require the use of additional stabilizers to protect them against thermal degradation. These polymers are amongst ...
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http://www.appstate.edu/~clementsjs/polymerproperties/zeus_thermal_degradation.pdf
As a general rule the fluoropolymers do not require the use of additional stabilizers to protect them against thermal degradation. These polymers are amongst ...
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16
Enhanced polymer mechanical degradation through ... - Nature
https://www.nature.com/articles/s41467-020-18809-7
The mechanical degradation of polymers is typically limited to a single chain scission per triggering chain stretching event, ...
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https://www.nature.com/articles/s41467-020-18809-7
The mechanical degradation of polymers is typically limited to a single chain scission per triggering chain stretching event, ...
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17
Current Status of Methods Used In Degradation of Polymers
https://www.matec-conferences.org/articles/matecconf/pdf/2018/03/matecconf_rimes2017_02023.pdf
Therefore the need of hour is to use polymer that do not harm the environment or to find easy and energy efficient methods which helps to degrade them.
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https://www.matec-conferences.org/articles/matecconf/pdf/2018/03/matecconf_rimes2017_02023.pdf
Therefore the need of hour is to use polymer that do not harm the environment or to find easy and energy efficient methods which helps to degrade them.
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18
Degradation and stability of polymer: A mini review - IOPscience
https://iopscience.iop.org/article/10.1088/1757-899X/788/1/012048/pdf
commonly performed to understand the process by which polymers degrade. ... The factors that could significantly affect the degradation of the same were the ...
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https://iopscience.iop.org/article/10.1088/1757-899X/788/1/012048/pdf
commonly performed to understand the process by which polymers degrade. ... The factors that could significantly affect the degradation of the same were the ...
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19
Plastic Failure Through Molecular Degradation - Nxtbook
http://read.nxtbook.com/wiley/plasticsengineering/january2015/consultantscorner.html
Thermal oxidation is the degradation of a polymeric material through contact with a chemical oxidizer. Most polymers are subject to oxidation, and it is the ...
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http://read.nxtbook.com/wiley/plasticsengineering/january2015/consultantscorner.html
Thermal oxidation is the degradation of a polymeric material through contact with a chemical oxidizer. Most polymers are subject to oxidation, and it is the ...
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20
Guide for authors - Polymer Degradation and Stability - Elsevier
https://www.elsevier.com/journals/polymer-degradation-and-stability/0141-3910/guide-for-authors
Deteriorative reactions occur during processing, when polymers are subjected to heat, oxygen and mechanical stress, and during the useful life of the materials ...
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https://www.elsevier.com/journals/polymer-degradation-and-stability/0141-3910/guide-for-authors
Deteriorative reactions occur during processing, when polymers are subjected to heat, oxygen and mechanical stress, and during the useful life of the materials ...
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21
Polymer degradation - Support
https://support.3devo.com/troubleshooting-polymer-degredation
Polymer degradation is the change in the properties of a polymer under the influence of environmental factors such as heat, oxygen, light, or chemicals.
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https://support.3devo.com/troubleshooting-polymer-degredation
Polymer degradation is the change in the properties of a polymer under the influence of environmental factors such as heat, oxygen, light, or chemicals.
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22
Techniques and mechanisms of polymer degradation
https://link.springer.com/content/pdf/10.1007%2F978-94-011-0571-2_3.pdf
Reliable techniques are required to predict the susceptibility of polymers to degradation. Existing analyses should be able to monitor chemical, physical.
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https://link.springer.com/content/pdf/10.1007%2F978-94-011-0571-2_3.pdf
Reliable techniques are required to predict the susceptibility of polymers to degradation. Existing analyses should be able to monitor chemical, physical.
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23
Full article: Enzymatic degradation of polymers: a brief review
https://www.tandfonline.com/doi/full/10.1179/1743284713Y.0000000503
Polymeric materials can be degraded by microorganisms in the environment by their secreted enzymes. Polymeric biomaterials used in the biomedical applications ...
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https://www.tandfonline.com/doi/full/10.1179/1743284713Y.0000000503
Polymeric materials can be degraded by microorganisms in the environment by their secreted enzymes. Polymeric biomaterials used in the biomedical applications ...
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24
Mechanisms of Polymer Degradation - ResearchGate
https://www.researchgate.net/publication/312528599_Mechanisms_of_Polymer_Degradation
Very small variations in the chemical structures of polymer could lead to large changes in their biodegradability. In a typical degradation ...
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https://www.researchgate.net/publication/312528599_Mechanisms_of_Polymer_Degradation
Very small variations in the chemical structures of polymer could lead to large changes in their biodegradability. In a typical degradation ...
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25
The three stages in degradation of polymers—polyethylene as ...
https://onlinelibrary.wiley.com/doi/10.1002/app.1988.070350515
Samples were exposed to UV irradiation for 0, 7, 26, and 42 days. The degradation is characterized by three stages: (I) a constant degradation rate, (II) a ...
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https://onlinelibrary.wiley.com/doi/10.1002/app.1988.070350515
Samples were exposed to UV irradiation for 0, 7, 26, and 42 days. The degradation is characterized by three stages: (I) a constant degradation rate, (II) a ...
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26
Effect of Thermal Degradation on Polymer Thermal Properties
https://www.tainstruments.com/pdf/literature/TA430.pdf
melting temperature and below the degradation temperature of the polymer. However, polymers under elevated temperatures could be slightly degraded, ...
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https://www.tainstruments.com/pdf/literature/TA430.pdf
melting temperature and below the degradation temperature of the polymer. However, polymers under elevated temperatures could be slightly degraded, ...
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27
How Degradable are Biodegradable Polymers in Water?
https://www.advancedsciencenews.com/degradable-biodegradable-polymers-water/
The conclusion of the current research is that most of the biodegradable polymers do not degrade under natural conditions.
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https://www.advancedsciencenews.com/degradable-biodegradable-polymers-water/
The conclusion of the current research is that most of the biodegradable polymers do not degrade under natural conditions.
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28
Do polymers degrade? If yes, then how? - Quora
https://www.quora.com/Do-polymers-degrade-If-yes-then-how
Yes, There is a different class of polymer that can degrade and it is called biodegradable polymers. They degrade in specific condition like compost and certain ...
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https://www.quora.com/Do-polymers-degrade-If-yes-then-how
Yes, There is a different class of polymer that can degrade and it is called biodegradable polymers. They degrade in specific condition like compost and certain ...
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29
Why do polymers break down?
https://www.iasa-web.org/deterioration-polymers-audio-visual-materials/why-do-polymers-break-down
the effects of oxygen, · the effects of moisture in the atmosphere, leading to hydrolytic breakdown, · heat, leading to thermal degradation, · mechanical stress, ...
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https://www.iasa-web.org/deterioration-polymers-audio-visual-materials/why-do-polymers-break-down
the effects of oxygen, · the effects of moisture in the atmosphere, leading to hydrolytic breakdown, · heat, leading to thermal degradation, · mechanical stress, ...
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30
Polymer Degradation And Stability | Learnbin
https://learnbin.net/polymer-degradation-and-stability/
Polymer degradation and stability is a process that changes the properties of a polymer. When polymers degrade, their properties are ...
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https://learnbin.net/polymer-degradation-and-stability/
Polymer degradation and stability is a process that changes the properties of a polymer. When polymers degrade, their properties are ...
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31
Degradation of Plastics under Anaerobic Conditions - MDPI
https://www.mdpi.com/2073-4360/12/1/109
These microbes either convert the carbon in the polymer chains to carbon dioxide or incorporate it into biomolecules [29,33]. However, this entire process is ...
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https://www.mdpi.com/2073-4360/12/1/109
These microbes either convert the carbon in the polymer chains to carbon dioxide or incorporate it into biomolecules [29,33]. However, this entire process is ...
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32
Biological Degradation of Polymers in the Environment
https://www.intechopen.com/chapters/66340
Degradation modifying mechanical, physical and chemical properties of a material is generally referred to as deterioration. Abiotic and biotic ...
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https://www.intechopen.com/chapters/66340
Degradation modifying mechanical, physical and chemical properties of a material is generally referred to as deterioration. Abiotic and biotic ...
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33
Predicting Polymer Degradation and Mechanical Property ...
https://www.osti.gov/servlets/purl/1380191
Given the chemical changes that depend upon the particular mix of radiation plus temperature, accelerated aging simulations should ideally choose accelerated ...
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https://www.osti.gov/servlets/purl/1380191
Given the chemical changes that depend upon the particular mix of radiation plus temperature, accelerated aging simulations should ideally choose accelerated ...
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34
Environmental Degradation of Plastics
https://phantomplastics.com/environmental-degradation-of-plastics/
Why do Plastics Degrade? ... Plastics are held together by the same chemical bonds as natural polymers like cellulose, silk, collagen, enzymes and even the DNA ...
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https://phantomplastics.com/environmental-degradation-of-plastics/
Why do Plastics Degrade? ... Plastics are held together by the same chemical bonds as natural polymers like cellulose, silk, collagen, enzymes and even the DNA ...
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35
The fate of the peroxyl radical in autoxidation
https://openresearch-repository.anu.edu.au/bitstream/1885/209140/3/The%20Fate%20of%20the%20Peroxyl%20Radical%20in%20Autoxidation-%20How%20Does%20Polymer%20Degradation%20Really%20Occur.pdf
the degraded polymer. On the other hand, primary and secondary peroxyl radicals would terminate to form non-radical products and halt further degradation.
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https://openresearch-repository.anu.edu.au/bitstream/1885/209140/3/The%20Fate%20of%20the%20Peroxyl%20Radical%20in%20Autoxidation-%20How%20Does%20Polymer%20Degradation%20Really%20Occur.pdf
the degraded polymer. On the other hand, primary and secondary peroxyl radicals would terminate to form non-radical products and halt further degradation.
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36
UV Degradation Effects in Materials – An Elementary Overview
https://uvsolutionsmag.com/articles/2019/uv-degradation-effects-in-materials-an-elementary-overview/
The most basic and prevalent UV damage mechanism in polymers is called chain scission by photolysis – the breaking of long chains into shorter ...
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https://uvsolutionsmag.com/articles/2019/uv-degradation-effects-in-materials-an-elementary-overview/
The most basic and prevalent UV damage mechanism in polymers is called chain scission by photolysis – the breaking of long chains into shorter ...
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37
Polymers designed to degrade upon exposure to gamma rays
https://www.chemistryworld.com/news/polymers-designed-to-degrade-upon-exposure-to-gamma-rays/4015435.article
Industrial degradation processes for thermoset polymers rely on incineration, landfill, thermolysis and solvolysis. Such strategies are linked to harsh reaction ...
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https://www.chemistryworld.com/news/polymers-designed-to-degrade-upon-exposure-to-gamma-rays/4015435.article
Industrial degradation processes for thermoset polymers rely on incineration, landfill, thermolysis and solvolysis. Such strategies are linked to harsh reaction ...
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38
Thermal Decomposition of Polymers
https://gbhint.tripod.com/papers_5_13_02/368_Beyler_Hirschler_SFPE_Handbook_3.pdf
thermal decomposition and thermal degradation. The. American Society for Testing and Materials' (ASTM) def- initions should provide helpful guidelines.
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https://gbhint.tripod.com/papers_5_13_02/368_Beyler_Hirschler_SFPE_Handbook_3.pdf
thermal decomposition and thermal degradation. The. American Society for Testing and Materials' (ASTM) def- initions should provide helpful guidelines.
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39
Degradable plastic polymer breaks down in sunlight and air
https://blog.pnas.org/2021/07/degradable-plastic-polymer-breaks-down-in-sunlight-and-air/
The mechanism clearly doesn't occur in the consumer plastics that litter sunny beaches. It's possible the degradation could occur in other ...
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https://blog.pnas.org/2021/07/degradable-plastic-polymer-breaks-down-in-sunlight-and-air/
The mechanism clearly doesn't occur in the consumer plastics that litter sunny beaches. It's possible the degradation could occur in other ...
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40
Effects of chemical and morphological structure on ...
https://bioresources.cnr.ncsu.edu/resources/effects-of-chemical-and-morphological-structure-on-biodegradability-of-fibers-fabrics-and-other-polymeric-materials/
In general, biologically synthesized polymers are readily biodegradable in natural environments but synthetic polymers are either less biodegradable or degrade ...
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https://bioresources.cnr.ncsu.edu/resources/effects-of-chemical-and-morphological-structure-on-biodegradability-of-fibers-fabrics-and-other-polymeric-materials/
In general, biologically synthesized polymers are readily biodegradable in natural environments but synthetic polymers are either less biodegradable or degrade ...
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41
Efficient and selective degradation of polyethylenes into liquid ...
https://www.science.org/doi/10.1126/sciadv.1501591
Polyethylene (PE) is the largest-volume synthetic polymer, and its chemical inertness makes its degradation by low-energy processes a challenging problem.
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https://www.science.org/doi/10.1126/sciadv.1501591
Polyethylene (PE) is the largest-volume synthetic polymer, and its chemical inertness makes its degradation by low-energy processes a challenging problem.
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42
Thermal degradation of polymers during their mechanical ...
https://hal.archives-ouvertes.fr/hal-02618344/document
The aim of the present chapter is to make a general analysis of polymer degradation processes during their melt processing, starting from ...
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https://hal.archives-ouvertes.fr/hal-02618344/document
The aim of the present chapter is to make a general analysis of polymer degradation processes during their melt processing, starting from ...
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43
Thermal Degradation of Polymers - RheoSense Blog
https://blog.rheosense.com/thermal-degradation-of-polymers
polymer to above the melting point. Understanding the degradation process of polymers is useful in predicting thermal stability of polymeric products and is ...
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https://blog.rheosense.com/thermal-degradation-of-polymers
polymer to above the melting point. Understanding the degradation process of polymers is useful in predicting thermal stability of polymeric products and is ...
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44
Polymer degradation - SlideShare
https://www.slideshare.net/sadek555/polymer-degradation
5. Polymer degradation is a change in the properties tensile strength, colour, shape, etc. Polymer-based product under the influence of ...
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https://www.slideshare.net/sadek555/polymer-degradation
5. Polymer degradation is a change in the properties tensile strength, colour, shape, etc. Polymer-based product under the influence of ...
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45
Towards in-line detection of thermal polymer degradation
https://researchoutreach.org/articles/towards-in-line-detection-thermal-polymer-degradation/
Polymers can be natural or synthetic, but all tend to degrade from temperature, mechanical force, or light, which naturally is a problem for the ...
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https://researchoutreach.org/articles/towards-in-line-detection-thermal-polymer-degradation/
Polymers can be natural or synthetic, but all tend to degrade from temperature, mechanical force, or light, which naturally is a problem for the ...
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46
Degradation of Polymer & Elastomer Exposed to Chlorinated ...
https://www.scirp.org/journal/paperinformation.aspx?paperid=109745
Polymer & Elastomers that degrade more quickly than expected create service problems, make it difficult for utilities to cost efficient plan preventive ...
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https://www.scirp.org/journal/paperinformation.aspx?paperid=109745
Polymer & Elastomers that degrade more quickly than expected create service problems, make it difficult for utilities to cost efficient plan preventive ...
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47
Polymer Degradation/Black Spots and Black Specks
https://chemtrend.com/problem/polymer-degradation-black-spots-and-black-specks/
In a plastic processing environment, thermoplastic polymers, heat sensitive polymers, and polymers that contain additives such as a flame retardant are prone to ...
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https://chemtrend.com/problem/polymer-degradation-black-spots-and-black-specks/
In a plastic processing environment, thermoplastic polymers, heat sensitive polymers, and polymers that contain additives such as a flame retardant are prone to ...
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48
Mechanistic implications of plastic degradation - Academia.edu
https://www.academia.edu/2501871/Mechanistic_implications_of_plastic_degradation
2. Methods for thermal degradation ments but practically no monomer is liberated. For random degradation to occur, the polymer chain does not require 3.2.2.1.
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https://www.academia.edu/2501871/Mechanistic_implications_of_plastic_degradation
2. Methods for thermal degradation ments but practically no monomer is liberated. For random degradation to occur, the polymer chain does not require 3.2.2.1.
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49
Plastic Degradation During Injection Molding
https://www.beaumontinc.com/plastic-degradation-during-injection-molding/
Polymer degradation occurs when the covalent bonds along the backbone of a molecular chain are broken. When this happens, the lengths of the ...
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https://www.beaumontinc.com/plastic-degradation-during-injection-molding/
Polymer degradation occurs when the covalent bonds along the backbone of a molecular chain are broken. When this happens, the lengths of the ...
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50
Lifetime prediction of biodegradable polymers - UQ eSpace
https://espace.library.uq.edu.au/view/UQ:678961/UQ678961_OA.pdf
It should be noted that the term “degradation” in this case specifically refers to the polymer chain scission reaction, whereas “erosion” refers ...
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https://espace.library.uq.edu.au/view/UQ:678961/UQ678961_OA.pdf
It should be noted that the term “degradation” in this case specifically refers to the polymer chain scission reaction, whereas “erosion” refers ...
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51
Polymer Degradation - Textile Study Point
http://textilestudypoint.blogspot.com/2017/01/polymer-degradation.html
Once implanted, a biodegradable device should maintain its mechanical properties until it is no longer needed and then be absorbed by the body ...
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http://textilestudypoint.blogspot.com/2017/01/polymer-degradation.html
Once implanted, a biodegradable device should maintain its mechanical properties until it is no longer needed and then be absorbed by the body ...
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52
Degradation of Superabsorbent Polymers
https://blog.zappa-tec.com/degradation-of-superabsorbent-polymers
Fortunately, most microorganisms are unable to solubilize SAPs because of the polymer's high molecular weight, resulting in a long-term ...
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https://blog.zappa-tec.com/degradation-of-superabsorbent-polymers
Fortunately, most microorganisms are unable to solubilize SAPs because of the polymer's high molecular weight, resulting in a long-term ...
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53
POLYMER WEATHERING: MECHANISMS OF ... - IPEN
https://www.ipen.br/biblioteca/cd/cbpol/2007/PDF/732.pdf
The intention of this review is to show how study of several different aspects of degradation are required to develop an understanding of polymer weathering. It ...
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https://www.ipen.br/biblioteca/cd/cbpol/2007/PDF/732.pdf
The intention of this review is to show how study of several different aspects of degradation are required to develop an understanding of polymer weathering. It ...
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54
Deterioration | Development Services - Collections Care Manual
https://manual.museum.wa.gov.au/conservation-and-care-collections-2017/modern-organic-materials/deterioration
It is rare for only one mechanism of degradation to operate within a polymeric material. Usually changes in the chemical make-up of polymeric materials are ...
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https://manual.museum.wa.gov.au/conservation-and-care-collections-2017/modern-organic-materials/deterioration
It is rare for only one mechanism of degradation to operate within a polymeric material. Usually changes in the chemical make-up of polymeric materials are ...
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55
Dyeing to Degrade: A Bioplastics Experiment for ... - NSF PAR
https://par.nsf.gov/servlets/purl/10140624
dye concentration, which is inversely correlated to polymer degradation. ... do not have access to UV−vis spectrometers, the option of.
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https://par.nsf.gov/servlets/purl/10140624
dye concentration, which is inversely correlated to polymer degradation. ... do not have access to UV−vis spectrometers, the option of.
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56
Degradable plastics - The Essential Chemical Industry
https://www.essentialchemicalindustry.org/polymers/degradable-plastics.html
With natural polymers, specific enzymes have developed over billions of years to aid rapid degradation; for most of the plastics developed over the last 80 ...
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https://www.essentialchemicalindustry.org/polymers/degradable-plastics.html
With natural polymers, specific enzymes have developed over billions of years to aid rapid degradation; for most of the plastics developed over the last 80 ...
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57
Usage of Potential Micro-organisms for Degradation of Plastics
https://www.peertechzpublications.com/articles/OJEB-4-110.php
Microbes act on monomers for their degradation by releasing enzymes on polymers. The rate of microbial degradation is affected by both the environmental ...
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https://www.peertechzpublications.com/articles/OJEB-4-110.php
Microbes act on monomers for their degradation by releasing enzymes on polymers. The rate of microbial degradation is affected by both the environmental ...
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58
Polymer-Eating Enzymes Make “Biodegradable” Plastics Truly ...
https://scitechdaily.com/polymer-eating-enzymes-make-biodegradable-plastics-truly-compostable/
Only in some cases biodegradable bio-based plastics can be composted at home. In most cases though biodegradable plastics will only degrade in ...
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https://scitechdaily.com/polymer-eating-enzymes-make-biodegradable-plastics-truly-compostable/
Only in some cases biodegradable bio-based plastics can be composted at home. In most cases though biodegradable plastics will only degrade in ...
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59
Why isn't plastic biodegradable? - Ohio State News
https://news.osu.edu/why-isnt-plastic-biodegradable/
Researchers working on bioplastics that will degrade more easily ... a chain of polypropylene molecules linked together to make a polymer.
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https://news.osu.edu/why-isnt-plastic-biodegradable/
Researchers working on bioplastics that will degrade more easily ... a chain of polypropylene molecules linked together to make a polymer.
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60
Why Does It Take Plastic So Long to Break Down? - מכון דוידסון
https://davidson.weizmann.ac.il/en/online/askexpert/why-does-it-take-plastic-so-long-break-down
The reason for the slow degradation is a simple one. These materials do not exist in nature, and therefore, there are no naturally occurring ...
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https://davidson.weizmann.ac.il/en/online/askexpert/why-does-it-take-plastic-so-long-break-down
The reason for the slow degradation is a simple one. These materials do not exist in nature, and therefore, there are no naturally occurring ...
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61
Polymer degradation - Wikipedia - Al-Quds University
https://wiki.alquds.edu/?query=Polymer_degradation
Thermal degradation[edit] ... Heating polymers to a sufficiently high temperature can cause damaging chemical changes, even in the absence of ...
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https://wiki.alquds.edu/?query=Polymer_degradation
Thermal degradation[edit] ... Heating polymers to a sufficiently high temperature can cause damaging chemical changes, even in the absence of ...
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62
Effects Of Degradation On Mechanical Properties Of Tissue ...
https://elischolar.library.yale.edu/cgi/viewcontent.cgi?article=2011&context=ymtdl
properties of the polymeric scaffold could be described by a neo-Hookean behavior ... initial set of experimental data on polymer degradation (Figure 3), ...
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https://elischolar.library.yale.edu/cgi/viewcontent.cgi?article=2011&context=ymtdl
properties of the polymeric scaffold could be described by a neo-Hookean behavior ... initial set of experimental data on polymer degradation (Figure 3), ...
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63
Humidity as a Use Condition for Accelerated Aging of Polymers
https://www.mddionline.com/testing/humidity-use-condition-accelerated-aging-polymers
Over time, humidity can affect polymers in a variety of ways. Notably it can result in a relatively common polymer chemical degradation reaction ...
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https://www.mddionline.com/testing/humidity-use-condition-accelerated-aging-polymers
Over time, humidity can affect polymers in a variety of ways. Notably it can result in a relatively common polymer chemical degradation reaction ...
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64
1 Antioxidants & Antidegradants Polymer Degradation ...
https://www.nocil.com/Downloadfile/ETechnicalNote-Antioxidants-Dec2010.pdf
The rubber surface which is not stressed also undergoes reaction with ozone to form oxidized film but does not show typical ozone cracks. • No crack growth ...
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https://www.nocil.com/Downloadfile/ETechnicalNote-Antioxidants-Dec2010.pdf
The rubber surface which is not stressed also undergoes reaction with ozone to form oxidized film but does not show typical ozone cracks. • No crack growth ...
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65
Chapter 6 Polymer Degradation - ppt video online download
https://slideplayer.com/slide/7994934/
The reaction during which the molecular weight of polymer reduce is called degradation, includes depolymerization, random chain scission and the remove of ...
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https://slideplayer.com/slide/7994934/
The reaction during which the molecular weight of polymer reduce is called degradation, includes depolymerization, random chain scission and the remove of ...
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66
New process makes 'biodegradable' plastics truly compostable
https://www.eurekalert.org/news-releases/639102
When exposed to heat and water, the enzyme shrugs off its polymer shroud and starts chomping the plastic polymer into its building blocks -- in ...
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https://www.eurekalert.org/news-releases/639102
When exposed to heat and water, the enzyme shrugs off its polymer shroud and starts chomping the plastic polymer into its building blocks -- in ...
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67
RADIATION-INDUCED OXIDATION OF POLYMERS - IChTJ
http://www.ichtj.waw.pl/ichtj/publ/monogr/sun2017/sun-chapter8.pdf
Polymer degradation can be induced by thermal, mechanical, photochemi- ... It should be noted that the free radicals R• react with molecular oxygen.
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http://www.ichtj.waw.pl/ichtj/publ/monogr/sun2017/sun-chapter8.pdf
Polymer degradation can be induced by thermal, mechanical, photochemi- ... It should be noted that the free radicals R• react with molecular oxygen.
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68
Chemistry:Polymer degradation - HandWiki
https://handwiki.org/wiki/Chemistry:Polymer_degradation
Polymer degradation is the reduction in the physical properties of a polymer, ... Most plastics do not biodegrade readily, however, they do still degrade in ...
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https://handwiki.org/wiki/Chemistry:Polymer_degradation
Polymer degradation is the reduction in the physical properties of a polymer, ... Most plastics do not biodegrade readily, however, they do still degrade in ...
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69
Enzymatic Degradation of the Most Common Aliphatic Bio ...
https://mdpi-res.com/d_attachment/polymers/polymers-14-01850/article_deploy/polymers-14-01850.pdf?version=1651315086
an erosion mechanism and did not significantly affect the macromolecular ... of enzymatic polymer degradation mechanisms are possible.
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https://mdpi-res.com/d_attachment/polymers/polymers-14-01850/article_deploy/polymers-14-01850.pdf?version=1651315086
an erosion mechanism and did not significantly affect the macromolecular ... of enzymatic polymer degradation mechanisms are possible.
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70
Biodegradation, explained - Green Dot Bioplastics
https://www.greendotbioplastics.com/biodegradation-explained/
A biodegradable plastic contains polymers that can be broken down and digested by polymer-degrading microbes in (ideally) aerobic environments where methane ...
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https://www.greendotbioplastics.com/biodegradation-explained/
A biodegradable plastic contains polymers that can be broken down and digested by polymer-degrading microbes in (ideally) aerobic environments where methane ...
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71
Microbial Bioplastic Degradation
https://asm.org/Articles/2021/November/Microbial-Bioplastic-Degradation
The physical attributes of a plastic product, such as flexibility and thermal resistance, can be modulated by changing the polymer backbone, ...
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https://asm.org/Articles/2021/November/Microbial-Bioplastic-Degradation
The physical attributes of a plastic product, such as flexibility and thermal resistance, can be modulated by changing the polymer backbone, ...
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72
Degradation of Oxo-Biodegradable Plastic by Pleurotus ...
https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0069386
Exposure of this waste plastic to ultraviolet light (UV) or heat can lead to breakage of the polymer chains in the plastic, and the resulting ...
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https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0069386
Exposure of this waste plastic to ultraviolet light (UV) or heat can lead to breakage of the polymer chains in the plastic, and the resulting ...
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73
Different Strategies to Characterise Polymer Degradation by ...
http://www.diva-portal.org/smash/get/diva2:9045/FULLTEXT01.pdf
Three model polymers were used in order to assess different degradation rates: • Fast rate (1-2 months) – Thermo-oxidation. Polyether. How do we monitor ...
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http://www.diva-portal.org/smash/get/diva2:9045/FULLTEXT01.pdf
Three model polymers were used in order to assess different degradation rates: • Fast rate (1-2 months) – Thermo-oxidation. Polyether. How do we monitor ...
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74
Degradation of Polymers - Encyclopedia - The Free Dictionary
https://encyclopedia2.thefreedictionary.com/Degradation+of+Polymers
Depending on the agent, the following forms of polymer degradation are distinguished: thermal, thermal oxidative, photochemical, hydrolytic, and radiation, ...
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https://encyclopedia2.thefreedictionary.com/Degradation+of+Polymers
Depending on the agent, the following forms of polymer degradation are distinguished: thermal, thermal oxidative, photochemical, hydrolytic, and radiation, ...
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75
Stability and stabilization of polymers under irradiation
https://www-pub.iaea.org/MTCD/Publications/PDF/te_1062_prn.pdf
The IAEA does not normally maintain stocks of reports in this series. ... polymers to radiation-induced degradation in mechanical properties and in optical ...
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https://www-pub.iaea.org/MTCD/Publications/PDF/te_1062_prn.pdf
The IAEA does not normally maintain stocks of reports in this series. ... polymers to radiation-induced degradation in mechanical properties and in optical ...
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76
Synthetic polymers do not degrade in the environment for a ...
https://www.toppr.com/ask/question/synthetic-polymers-do-not-degrade-in-the-environment-for-a-long-time-how-can-biodegradable/
1. Poyl - beta - hydroxybutyarte - c - beta - hydroxy valerate (PHBV) It is obtained by the copolymerization of 3 - hydroxybutanoic acid and 3 - hydroxypentanoi ...
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https://www.toppr.com/ask/question/synthetic-polymers-do-not-degrade-in-the-environment-for-a-long-time-how-can-biodegradable/
1. Poyl - beta - hydroxybutyarte - c - beta - hydroxy valerate (PHBV) It is obtained by the copolymerization of 3 - hydroxybutanoic acid and 3 - hydroxypentanoi ...
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77
Dyeing to Degrade: A Bioplastics Experiment for College and ...
https://experts.umn.edu/en/publications/dyeing-to-degrade-a-bioplastics-experiment-for-college-and-high-s
The dyed polymer samples are observed to degrade in an aqueous sodium hydroxide solution, releasing the dye. Both ultraviolet-visible ...
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https://experts.umn.edu/en/publications/dyeing-to-degrade-a-bioplastics-experiment-for-college-and-high-s
The dyed polymer samples are observed to degrade in an aqueous sodium hydroxide solution, releasing the dye. Both ultraviolet-visible ...
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78
Plastics and the microbiome: impacts and solutions
https://environmentalmicrobiome.biomedcentral.com/articles/10.1186/s40793-020-00371-w
Even where polymer degradation is demonstrated, such as for polyethylene terephthalate, the ability of microorganisms to degrade more highly ...
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https://environmentalmicrobiome.biomedcentral.com/articles/10.1186/s40793-020-00371-w
Even where polymer degradation is demonstrated, such as for polyethylene terephthalate, the ability of microorganisms to degrade more highly ...
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79
Synthetic Polymer Easily Degrades for Environmentally ...
https://www.designnews.com/materials-assembly/synthetic-polymer-easily-degrades-environmentally-friendly-applications
What they found is that the polymer would cleanly degrade into a combination of two low-molecular weight compounds in high yield under mild acidic ...
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https://www.designnews.com/materials-assembly/synthetic-polymer-easily-degrades-environmentally-friendly-applications
What they found is that the polymer would cleanly degrade into a combination of two low-molecular weight compounds in high yield under mild acidic ...
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80
Tuning the hydrolytic degradation rate of poly-lactic acid (PLA ...
https://aip.scitation.org/doi/pdf/10.1063/1.5016801
Among biodegradable polymers, PLA (obtained from renewable sources) is a very attractive ... The solution could be using some fillers that can influence the ...
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https://aip.scitation.org/doi/pdf/10.1063/1.5016801
Among biodegradable polymers, PLA (obtained from renewable sources) is a very attractive ... The solution could be using some fillers that can influence the ...
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81
Characterization of Polymers using TGA - PerkinElmer
https://resources.perkinelmer.com/lab-solutions/resources/docs/app_characterizationofpolymersusingtga.pdf
The TGA results show that the nylon 6,6 polymer undergoes thermal degradation beginning at 482 ˚C and with a total mass loss of 99.0%.
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https://resources.perkinelmer.com/lab-solutions/resources/docs/app_characterizationofpolymersusingtga.pdf
The TGA results show that the nylon 6,6 polymer undergoes thermal degradation beginning at 482 ˚C and with a total mass loss of 99.0%.
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82
Polymer Degradation and Stability - Impact Factor, Overall ...
https://www.resurchify.com/impact/details/26444
How to publish in Polymer Degradation and Stability. If your research field is/are related to Condensed Matter Physics (Q1); Materials Chemistry ...
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https://www.resurchify.com/impact/details/26444
How to publish in Polymer Degradation and Stability. If your research field is/are related to Condensed Matter Physics (Q1); Materials Chemistry ...
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83
Common Causes of Polymer Failure - Jordi Labs
https://jordilabs.com/blog/common-causes-polymer-failure/
Understanding how and why materials degrade and ultimately fail is a critical step in the research and development (R&D) process. Compared to the lifespan ...
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https://jordilabs.com/blog/common-causes-polymer-failure/
Understanding how and why materials degrade and ultimately fail is a critical step in the research and development (R&D) process. Compared to the lifespan ...
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84
First True Biodegradable Plastic Disintegrates in Heat, Water ...
https://www.sciencetimes.com/articles/30802/20210422/first-true-biodegradable-plastic-disintegrates-heat-water-few-weeks.htm
The scientists covered the polymers with the enzymes and then embedded them ... Biodegradable Plastic Do Not Degrade in Room Temperature.
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https://www.sciencetimes.com/articles/30802/20210422/first-true-biodegradable-plastic-disintegrates-heat-water-few-weeks.htm
The scientists covered the polymers with the enzymes and then embedded them ... Biodegradable Plastic Do Not Degrade in Room Temperature.
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85
BIODEGRADABLE POLYMER | Definition | Property | Uses
https://www.infosarena.com/biodegradable-polymer/
Biodegradable polymers are those polymers which get decomposed by the process of biodegradation. Biodegradation is defined as a process carried out by ...
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https://www.infosarena.com/biodegradable-polymer/
Biodegradable polymers are those polymers which get decomposed by the process of biodegradation. Biodegradation is defined as a process carried out by ...
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86
How Do Polymers Actually Behave At High Temperatures?
https://www.plunkettassociates.co.uk/faqs/additive-manufacturing/how-do-polymers-actually-behave-at-high-temperatures.php
› faqs › how-do-p...
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https://www.plunkettassociates.co.uk/faqs/additive-manufacturing/how-do-polymers-actually-behave-at-high-temperatures.php
› faqs › how-do-p...
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87
Influence of cryogenic temperature on mechanical behavior of ...
http://amp.turbo.fr/local-searching-02bj5CdjVmcpRWZj5WZpN2cuc3d39yL6MHc0/science/article/pii/S245221392030098X
The use of Carbon Fibre Reinforced Polymer (CFRP) composites is progressively ... but the strength should be retained at cryogenic temperatures as well.
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http://amp.turbo.fr/local-searching-02bj5CdjVmcpRWZj5WZpN2cuc3d39yL6MHc0/science/article/pii/S245221392030098X
The use of Carbon Fibre Reinforced Polymer (CFRP) composites is progressively ... but the strength should be retained at cryogenic temperatures as well.
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88
Plastic Entropy – Plastic Entropy
https://www.plasticentropy.net/
Plastics are synthetic polymers. ... We have discovered a biological agent that can degrade PE of commonly used plastic bags in a ... How does this happen?
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https://www.plasticentropy.net/
Plastics are synthetic polymers. ... We have discovered a biological agent that can degrade PE of commonly used plastic bags in a ... How does this happen?
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89
Did QuantumScape Just Solve a 40-Year-Old Battery Problem?
https://www.wired.com/story/quantumscape-solid-state-battery/
Although polymers are the separator material of choice in liquid electrolyte batteries, they're inadequate for solid-state cells because they ...
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https://www.wired.com/story/quantumscape-solid-state-battery/
Although polymers are the separator material of choice in liquid electrolyte batteries, they're inadequate for solid-state cells because they ...
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90
Fundamentals of Polymer Degradation and Stabilization
https://books.google.com/books?id=Ll8QGMa8OX0C&pg=PA80&lpg=PA80&dq=how+do+polymers+degrade&source=bl&ots=JLJVCAJ5x5&sig=ACfU3U3-KySjl7H5vwFrj6rflpMlMOMqVw&hl=en&sa=X&ved=2ahUKEwi3h5Gf7877AhXQpIkEHSRVBnkQ6AF6BQjqAhAD
All unstabilised organic polymers oxidise and / or degrade upon exposure to ... The rates of photodeterioration vary enormously with polymer structure and ...
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https://books.google.com/books?id=Ll8QGMa8OX0C&pg=PA80&lpg=PA80&dq=how+do+polymers+degrade&source=bl&ots=JLJVCAJ5x5&sig=ACfU3U3-KySjl7H5vwFrj6rflpMlMOMqVw&hl=en&sa=X&ved=2ahUKEwi3h5Gf7877AhXQpIkEHSRVBnkQ6AF6BQjqAhAD
All unstabilised organic polymers oxidise and / or degrade upon exposure to ... The rates of photodeterioration vary enormously with polymer structure and ...
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91
Handbook of Polymer Degradation - Page 426 - Google Books Result
https://books.google.com/books?id=2URZDwAAQBAJ&pg=PA426&lpg=PA426&dq=how+do+polymers+degrade&source=bl&ots=eeaAK0Jk8e&sig=ACfU3U1RvRjU_ffaemTI4_PGRybW2YkLpw&hl=en&sa=X&ved=2ahUKEwi3h5Gf7877AhXQpIkEHSRVBnkQ6AF6BQjnAhAD
The same three steps can be observed for several degrading polymers besides PE. ... do not degrade as effectively and are not generally used (83).
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https://books.google.com/books?id=2URZDwAAQBAJ&pg=PA426&lpg=PA426&dq=how+do+polymers+degrade&source=bl&ots=eeaAK0Jk8e&sig=ACfU3U1RvRjU_ffaemTI4_PGRybW2YkLpw&hl=en&sa=X&ved=2ahUKEwi3h5Gf7877AhXQpIkEHSRVBnkQ6AF6BQjnAhAD
The same three steps can be observed for several degrading polymers besides PE. ... do not degrade as effectively and are not generally used (83).
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