文献类型：期刊文献

英文题名：Enhanced properties of poly(silylene phenylether arylacetylene) by a side cyano group

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

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

年份：2022

卷号：62

期号：9

起止页码：2900

外文期刊名：POLYMER ENGINEERING AND SCIENCE

收录：;EI(收录号：20222712331823);WOS:【SCI-EXPANDED(收录号:WOS:000825222300001)】；

基金：Fundamental Research Funds for the Central Universities, Grant/Award Number: JKD01211701

语种：英文

外文关键词：high-performance resin; poly(silylene arylacetylene) resin; silicon-containing arylacetylene resin with a cyano group; thermally stable resin

摘要：Poly(silylene arylacetylene) resin is a type of thermosetting resin with high heat resistance and good mechanical performance. A cyano group was introduced into a 1,3-bis(4-ethynylphenoxy)benzene, and thus a poly(silylene phenylether arylacetylene) with a side cyano group (PCNSA-MP) was obtained by the polymerization of 2,6-bis-(4-ethynylphenoxy)benzonitrile and dichlormethylphenylsilane under a catalyst. The structures and properties of PCNSA-MP and poly(silylene phenylether arylacetylene) (PSEA-MP) resins and the mechanical properties of T300/resin composites were studied. The results show that both PCNSA-MP and PSEA-MP resins possess good heat resistance. Especially, the PCNSA-MP resin with the cyano group exhibits lower curing temperature, better heat resistance, and higher mechanical properties as compared with PSEA-MP resin. The T-d5 of the cured PCNSA-MP resin arrives at 491 degrees C and there is no significant glass transition below 450 degrees C for the resin. The flexural strengths of the cured PCNSA-MP resin and T300/ PCNSA-MP composite reach 55.2 MPa and 433.8 MPa, respectively.