About: NOR and nitroxide-based HAS in accelerated photooxidation of carbon-chain polymers; comparison with secondary HAS: an ESRI and ATR FTIR study

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About: NOR and nitroxide-based HAS in accelerated photooxidation of carbon-chain polymers; comparison with secondary HAS: an ESRI and ATR FTIR study Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Modern physical techniques were adopted for studies of spatial distribution of intermediates and products of photodegradation of four commodity polymers (polypropylene, polyethylene, polystyrene and poly(ethylene-co-norbornene)) stabilized with hindered amine stabilizer (HAS). HAS stabilization activity in polymers subjected to photooxidation is indicated by appearance of nitroxides. Concentration profiles of nitroxides inside polymer plaques subjected to accelerated weathering as a function of the weathering exposure time were determined by electron spin resonance imaging (ESRI). Stabilization activity of three alkoxyamine derivatives of HAS (TinuvinNOR 123, TinuvinNOR 371, FlamestabNOR 116), Chimasorb119 structurally similar to FlamestabNOR 116, and nitroxide-based HAS Dastib1045 was studied and compared with the secondary HAS Tinuvin770. ESRI data were complemented by ATR FTIR detection of oxidation products and by diffusive optical transmittance of the polymer plaques. Modern physical techniques were adopted for studies of spatial distribution of intermediates and products of photodegradation of four commodity polymers (polypropylene, polyethylene, polystyrene and poly(ethylene-co-norbornene)) stabilized with hindered amine stabilizer (HAS). HAS stabilization activity in polymers subjected to photooxidation is indicated by appearance of nitroxides. Concentration profiles of nitroxides inside polymer plaques subjected to accelerated weathering as a function of the weathering exposure time were determined by electron spin resonance imaging (ESRI). Stabilization activity of three alkoxyamine derivatives of HAS (TinuvinNOR 123, TinuvinNOR 371, FlamestabNOR 116), Chimasorb119 structurally similar to FlamestabNOR 116, and nitroxide-based HAS Dastib1045 was studied and compared with the secondary HAS Tinuvin770. ESRI data were complemented by ATR FTIR detection of oxidation products and by diffusive optical transmittance of the polymer plaques. (en)
Title	NOR and nitroxide-based HAS in accelerated photooxidation of carbon-chain polymers; comparison with secondary HAS: an ESRI and ATR FTIR study NOR and nitroxide-based HAS in accelerated photooxidation of carbon-chain polymers; comparison with secondary HAS: an ESRI and ATR FTIR study (en)
skos:prefLabel	NOR and nitroxide-based HAS in accelerated photooxidation of carbon-chain polymers; comparison with secondary HAS: an ESRI and ATR FTIR study NOR and nitroxide-based HAS in accelerated photooxidation of carbon-chain polymers; comparison with secondary HAS: an ESRI and ATR FTIR study (en)
skos:notation	RIV/61389013:_____/11:00359226!RIV12-AV0-61389013
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(IAA400500804), Z(AV0Z40500505)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Michálková, Danuše Šeděnková, Ivana Pfleger, Jiří Pilař, Jan Pospíšil, Jan
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
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	216291
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/11:00359226
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	commodity carbon-chain polymers; photodegradation; accelerated weathering (en)
http://linked.open.../riv/klicoveSlovo	photodegradation accelerated weathering commodity carbon-chain polymers
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[B8A6AC00E954]
http://linked.open...i/riv/nazevZdroje	Polymer Degradation and Stability
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (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...v/svazekPeriodika	96
http://linked.open...iv/tvurceVysledku	Michálková, Danuše Pfleger, Jiří Pospíšil, Jan Pilař, Jan Šeděnková, Ivana
http://linked.open...ain/vavai/riv/wos	000290078200016
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
issn	0141-3910
number of pages	16 (xsd:int)
http://bibframe.org/vocab/doi	10.1016/j.polymdegradstab.2011.02.004

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