文献类型：期刊文献

英文题名：Synthesis and properties of sulfur-contained poly(silylene arylacetylene)s

作者：Li, Chuan[1];Luo, Jiawei[1];Ma, Manping[1];Tang, Junkun[1];Yuan, Qiaolong[1];Huang, Farong[1]

机构：[1]East China Univ Sci & Technol, Key Lab Specially Funct Mat & Related Technol, Minist Educ, Shanghai 200237, Peoples R China

年份：2019

卷号：57

期号：23

起止页码：2324

外文期刊名：JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY

收录：;EI(收录号：20194707716520);WOS:【SCI-EXPANDED(收录号:WOS:000496578900001)】；

基金：The authors gratefully acknowledge the support of the Fundamental Research Funds for the Central Universities (No. 50321041917001).

语种：英文

外文关键词：poly(silylene arylacetylene); resin for advanced composite; sulfur-containing polymer

摘要：Poly(silylene arylacetylene) (PSA) is a kind of poly(arylacetylene) silicon-containing resins with excellent heat resistance and good mechanical performances. In this article, the sulfur atom is introduced into the main chain of the PSA molecule to obtain a sulfur-containing poly(silylene arylacetylene), named S-PSA. By Williamson and Sonogashira reactions, bis(4-ethynylphenyl)sulfide and bis(4-ethynylphenyl)sulfone were synthesized. Thereafter, through Grignard reagent way, the poly(silylene ethynylene phenylene sulfide phenylene ethynylene) (PSESE) and poly(silylene ethynylene phenylene sulfone phenylene ethynylene) (PSESO2E) were synthesized from bis(4-ethynylphenyl)sulfide, bis(4-ethynylphenyl)sulfone, and methylphenyl dichlorosilane. Poly(silylene ethynylene phenylene sulfoxide phenylene ethynylene) (PSESOE) was synthesized by the oxidation of PSESE. The structures and properties of these resins were characterized and the mechanical properties of the T300 reinforced composites were tested. The results show that the novel S-PSA resins have excellent heat resistance and good mechanical properties, and could be used as resin matrices for high-performance composites in high-tech fields. (c) 2019 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2019