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Stabilization of polyurethanes based on liquid OH-telechelic polybutadienes: comparison of commercial and polymer-bound antioxidants
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SYSNO ASEP 0323838 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Stabilization of polyurethanes based on liquid OH-telechelic polybutadienes: comparison of commercial and polymer-bound antioxidants Title Stabilizace polyurethanů na bázi kapalných OH-telechelických polybutadienů: srovnání komerčních a polymerně vázaných antioxidantů Author(s) Podešva, Jiří (UMCH-V) RID
Kovářová, Jana (UMCH-V) RID
Hrdličková, Miluše (UMCH-V)
Netopilík, Miloš (UMCH-V) RIDSource Title Polymer Degradation and Stability. - : Elsevier - ISSN 0141-3910
Roč. 94, č. 4 (2009), s. 647-650Number of pages 4 s. Language eng - English Country NL - Netherlands Keywords polyurethanes ; liquid polybutadienes ; polymeric antioxidants Subject RIV CD - Macromolecular Chemistry R&D Projects GA203/07/0987 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z40500505 - UMCH-V (2005-2011) UT WOS 000265181100023 DOI 10.1016/j.polymdegradstab.2009.01.003 Annotation A soluble polyurethane was synthesized by a reaction of OH-telechelic, 1,2-rich, low-molecular-weight polybutadiene with toluene 2,4-diisocyanate. To the pendent vinyls of the polybutadiene blocks of the polyurethane, a sterically hindered phenolic antioxidant bearing a sulfanyl group (i.e., 6-sulfanylhexyl 3(3,5-di-tert-butyl-4-hydroxyphenyl)propanoate) was added by a free-radical mechanism (in varying degrees of conversion). It was found by the DSC method that an admixture of polyurethane thus modified to original polyurethane shows an equal antioxidation effect as an admixture of the low-molar-mass analog, as related to the same mole concentration of the phenolic moiety. Workplace Institute of Macromolecular Chemistry Contact Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Year of Publishing 2009
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