Side-chain phenol-functionalized poly(ether sulfone) and its contribution to high-performance and flexible epoxy thermosets
作者： Ching Hsuan Lin , Jui Chun Chen , Chu Ming Huang , Jih Mirn Jehng , Hou Chien Chang
DOI: 10.1016/J.POLYMER.2013.10.054
关键词:
摘要: Abstract We prepared a side-chain phenol-functionalized poly(ether sulfone) ( P1 ) from one-pot reaction of 4,4′-dihydroxybenzophenone (DHBP)-based sulfone), poly(oxy-1,4-phenylenecarbonyl-1,4-phenyleneoxy-1,4-phenylene-sulfonyl-1,4-phenylene (DHBP-PES)), with 9,10-dihydro-oxa-10-phosphaphenanthrene-10-oxide (DOPO) and phenol in the presence sulphuric acid. The linkages act as reacting sites for epoxy resins. Subsequently, flexible light-yellow transparent films thermosets can be achieved curing cresol novolac (CNE) diglycidyl ether bisphenol A (DGEBA). thermoset based on CNE /CNE) shows high T g value (241 °C), low coefficient thermal expansion (44 ppm/°C), flame retardancy (VTM-0). moderate-to-high molecular weight is responsible characteristics flexibility, which are rarely seen low-molecular agent.
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