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Inhomogeneity of photodegradation processes in bulk comodity polymers subjected to accelerated weathering studied by ESRI and other physical methods
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SYSNO ASEP 0329486 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Inhomogeneity of photodegradation processes in bulk comodity polymers subjected to accelerated weathering studied by ESRI and other physical methods Title Nehomogenita fotodegradačního procesu v polymerních tlustostěnných materiálech vystavených urychlenému stárnutí studovaná technikou ESRI a dalšími fyzikálními metodami Author(s) Pilař, Jan (UMCH-V) RID, ORCID
Pfleger, Jiří (UMCH-V) RID
Trchová, Miroslava (UMCH-V) RID, ORCID
Michálková, Danuše (UMCH-V)
Pospíšil, Jan (UMCH-V)Source Title Natural and Artificial Ageing of Polymers. - Pfinztal : Confederation of European Environmental Engineering Societies (CEEES)- Gesellschaft für Umweltsimulation GUS, 2009 / Reichert T. - ISBN 978-3-9810472-8-8 Pages s. 83-95 Number of pages 13 s. Action European Weathering Symposium /4./ Event date 16.09.2009-18.09.2009 VEvent location Budapest Country HU - Hungary Event type WRD Language eng - English Country DE - Germany Keywords polymer degradation ; hindered amine stabilizers ; accelerated weathering Subject RIV CD - Macromolecular Chemistry R&D Projects IAA400500804 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40500505 - UMCH-V (2005-2011) Annotation Photodegradation of bulk polymers comprises a large number of chemical and physical processes which for a number of reasons affect distinct regions in the material in various time scales and with different intensity. Concentration profiles of nitroxides, key intermediates in the protection mechanism of hindered amine stabilizers (HAS), inside 6 mm thick plates along the direction perpendicular to their irradiated surface that contain information on the progress of the degradation processes inside the plaque were determined by electron spin resonance imaging (ESRI) in dependence on the duration of the accelerated weathering. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2010
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