About: Hindered amine stabilizers as sources of markers of the heterogeneous photooxidation/photostabilization of carbon chain polymers

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About: Hindered amine stabilizers as sources of markers of the heterogeneous photooxidation/photostabilization of carbon chain polymers Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
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 of the 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. 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 of the 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. (en)
Title	Hindered amine stabilizers as sources of markers of the heterogeneous photooxidation/photostabilization of carbon chain polymers Hindered amine stabilizers as sources of markers of the heterogeneous photooxidation/photostabilization of carbon chain polymers (en)
skos:prefLabel	Hindered amine stabilizers as sources of markers of the heterogeneous photooxidation/photostabilization of carbon chain polymers Hindered amine stabilizers as sources of markers of the heterogeneous photooxidation/photostabilization of carbon chain polymers (en)
skos:notation	RIV/61389013:_____/11:00364888!RIV12-AV0-61389013
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA400500804), Z(AV0Z40500505)
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Pilař, Jan Pospíšil, Jan
http://linked.open.../riv/druhVysledku	C - Kapitola v knize
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav makromolekulární chemie AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	202112
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/11:00364888
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	polymer photodegradation; polymer photostabilization; hindered amine stabilizers (en)
http://linked.open.../riv/klicoveSlovo	hindered amine stabilizers polymer photodegradation polymer photostabilization
http://linked.open...ontrolniKodProRIV	[B51EA547D9B2]
http://linked.open...i/riv/mistoVydani	New York
http://linked.open...vEdiceCisloSvazku	Polymer Science and Technology
http://linked.open...i/riv/nazevZdroje	Encyclopedia of Polymer Composites: Properties, Performance and Applications
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...v/pocetStranKnihy	1245 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Spatial heterogeneity of photo- and thermo-degradation of solid polymers by modern physical methods
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Pospíšil, Jan Pilař, Jan
http://linked.open...n/vavai/riv/zamer	Progresivní makromolekulární materiály a supramolekulární systémy: syntéza a studium vlastností, jevů a možností využití pro speciální aplikace a moderní technologie
number of pages	16 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Nova Science Publishers
https://schema.org/isbn	978-1-60741-717-0

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