Hindered amine stabilizers as sources of markers of the heterogeneous photooxidation/photostabilization of carbon chain polymers
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389013%3A_____%2F11%3A00364888" target="_blank" >RIV/61389013:_____/11:00364888 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Hindered amine stabilizers as sources of markers of the heterogeneous photooxidation/photostabilization of carbon chain polymers
Original language description
Application of Hindered Amine Stabilizers (HAS) is the state-of-the-art approach to protection of carbon-chain polymers such as polyolefins and polystyrene against weathering. During outdoor exposure, the polymers loose their material properties due to solar radiation-triggered photooxidation. Monitoring of the formation of the HAS-developed key transformation products, HAS-related nitroxides, responsible within the regenerative mechanism for the effective stabilization was used to confirm the heterogeneous character of photooxidation of two carbon-chain polymers, PP and Topas. Depth profiles of nitroxides inside the polymer plaques during accelerated weathering were monitored using ESRI technique. The shape of the profiles was interpreted in terms ofthe limited both oxygen diffusion and radiation penetration into polymer plaques. The data indicate differences in the character of the heterogeneous process in dependence on the polymer matrix and on the HAS based stabilizer system.
Czech name
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Czech description
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Classification
Type
C - Chapter in a specialist book
CEP classification
CD - Macromolecular chemistry
OECD FORD branch
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Result continuities
Project
<a href="/en/project/IAA400500804" target="_blank" >IAA400500804: Spatial heterogeneity of photo- and thermo-degradation of solid polymers by modern physical methods</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Book/collection name
Encyclopedia of Polymer Composites: Properties, Performance and Applications
ISBN
978-1-60741-717-0
Number of pages of the result
16
Pages from-to
1027-1042
Number of pages of the book
1245
Publisher name
Nova Science Publishers
Place of publication
New York
UT code for WoS chapter
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