About: Exploitation of modern physical techniques in characterization of accelerated weathering processes in commodity polymers; ESRI, ATR FTIR and diffuse transmittance measurements

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About: Exploitation of modern physical techniques in characterization of accelerated weathering processes in commodity polymers; ESRI, ATR FTIR and diffuse transmittance measurements Goto Sponge NotDistinct Permalink

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Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.weathering-symposium.org/books/books.htm
Description	Weathering of polymers comprises a large number of photooxidation processes triggered by environmental factors. It accounts for heterogeneous photodegradation that has negative impact on material properties of polymers. The degradation can be minimized by application of stabilizers, hindered amine stabilizers (HAS) in particular. We applied modern physical techniques that are able to bring unique information on the heterogeneity of the degradation process. Development of concentration profiles of nitroxides inside polymer plaques and concentrations of oxidation products on the surfaces and inside the plaques were determined by ESRI and by ATR FTIR, respectively. Diffuse optical transmission of the plaques was determined using spectrophotometer equipped with an integration sphere. Data determined in four commodity carbon chain polymers PP, PE, PS and Topas stabilized with secondary HAS Tinuvin 770 and with Tinuvin NOR 123 are compared. Weathering of polymers comprises a large number of photooxidation processes triggered by environmental factors. It accounts for heterogeneous photodegradation that has negative impact on material properties of polymers. The degradation can be minimized by application of stabilizers, hindered amine stabilizers (HAS) in particular. We applied modern physical techniques that are able to bring unique information on the heterogeneity of the degradation process. Development of concentration profiles of nitroxides inside polymer plaques and concentrations of oxidation products on the surfaces and inside the plaques were determined by ESRI and by ATR FTIR, respectively. Diffuse optical transmission of the plaques was determined using spectrophotometer equipped with an integration sphere. Data determined in four commodity carbon chain polymers PP, PE, PS and Topas stabilized with secondary HAS Tinuvin 770 and with Tinuvin NOR 123 are compared. (en)
Title	Exploitation of modern physical techniques in characterization of accelerated weathering processes in commodity polymers; ESRI, ATR FTIR and diffuse transmittance measurements Exploitation of modern physical techniques in characterization of accelerated weathering processes in commodity polymers; ESRI, ATR FTIR and diffuse transmittance measurements (en)
skos:prefLabel	Exploitation of modern physical techniques in characterization of accelerated weathering processes in commodity polymers; ESRI, ATR FTIR and diffuse transmittance measurements Exploitation of modern physical techniques in characterization of accelerated weathering processes in commodity polymers; ESRI, ATR FTIR and diffuse transmittance measurements (en)
skos:notation	RIV/61389013:_____/11:00364739!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	Michálková, Danuše Šeděnková, Ivana Pfleger, Jiří Pilař, Jan
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
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	198965
http://linked.open...ai/riv/idVysledku	RIV/61389013:_____/11:00364739
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	commodity polymers; photodegradation; diffuse transmittance (en)
http://linked.open.../riv/klicoveSlovo	commodity polymers diffuse transmittance photodegradation
http://linked.open...ontrolniKodProRIV	[F5C1151D9982]
http://linked.open...v/mistoKonaniAkce	Lisbon
http://linked.open...i/riv/mistoVydani	Pfinztal
http://linked.open...i/riv/nazevZdroje	Natural and Artificial Ageing of Polymers
http://linked.open...in/vavai/riv/obor	CD
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (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	Michálková, Danuše Pfleger, Jiří Pilař, Jan Šeděnková, Ivana
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2011-09-21 (xsd:date)
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	11 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Confederation of European Environmental Engineering Societies (CEEES) - Gesellschaft für Umweltsimulation GUS
https://schema.org/isbn	978-3-9813136-2-8

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