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Long-term accelerated weathering of HAS stabilized PE and PP plaques: Compliance of ESRI, IR, and microhardness data characterizing heterogeneity of photooxidation
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SYSNO ASEP 0445322 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Long-term accelerated weathering of HAS stabilized PE and PP plaques: Compliance of ESRI, IR, and microhardness data characterizing heterogeneity of photooxidation Author(s) Pilař, Jan (UMCH-V) RID, ORCID
Michálková, Danuše (UMCH-V)
Šlouf, Miroslav (UMCH-V) RID, ORCID
Vacková, Taťana (UMCH-V) RIDSource Title Polymer Degradation and Stability. - : Elsevier - ISSN 0141-3910
Roč. 120, October (2015), s. 114-121Number of pages 8 s. Language eng - English Country NL - Netherlands Keywords polyethylene ; polypropylene ; accelerated weathering Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GAP208/10/1600 GA ČR - Czech Science Foundation (CSF) GA14-17921S GA ČR - Czech Science Foundation (CSF) Institutional support UMCH-V - RVO:61389013 UT WOS 000362926800014 EID SCOPUS 84934760449 DOI 10.1016/j.polymdegradstab.2015.06.011 Annotation Polymers in various applications are subjected to photooxidation processes resulting in loss of their material properties due to appearance of oxidation products and consequent degradation. Heterogeneous space distribution of concentration of oxidation products, crystallinity, stabilizer concentration and microhardness (MH) can be determined utilizing IR microspectroscopy and microhardness tester, respectively. We devoted this paper to direct determination of heterogeneity of the above mentioned parameters inside PE polymer plaques stabilized with secondary HAS Tinuvin® 770 and to the comparison of the data with nitroxide concentration profiles determined by ESRI that outline heterogeneity of the oxidation process inside the plaques. Data on heterogeneity of photooxidation processes in PP plaques stabilized with Tinuvin® 770 or binitroxide Prostab® 5415 are presented for comparison. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2016
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