文献类型：期刊文献

英文题名：Enhance high-temperature mechanical performance of a silicon-containing arylether arylacetylene resin with the aid of a terminal alkyne compound

作者：Han, Gang[1];Hou, Jinsen[2];Wan, Li[2];Hao, Xufeng[2];Liu, Xiaotian[1];Lv, Shuaikang[1];Gao, Man[1];Tang, Junkun[1];Huang, Farong[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Minist Educ, Key Lab Specially Funct Mat & Related Technol, Shanghai 200237, Peoples R China;[2]Shanghai Composites Sci & Technol Co Ltd, Shanghai 201112, Peoples R China

年份：2021

卷号：28

期号：11

外文期刊名：JOURNAL OF POLYMER RESEARCH

收录：;EI(收录号：20214311043191);WOS:【SCI-EXPANDED(收录号:WOS:000706729100001)】；

基金：This work has been supported by the National Natural Science Foundation of China (Grant No. 21805088), Shanghai Aerospace Science and Technology Innovation Fund (Grant No. SAST2017-142) and the Fundamental Research Funds for the Central Universities (No. JKD012116011).

语种：英文

外文关键词：Poly(silylene arylether arylacetylene) resin; Reaction of terminal acetylene with inner acetylene groups; Blended arylacetylene resin; Heat-resistant resin; High performance resin for advanced composite

摘要：Silicon-containing arylether arylacetylene resin is a kind of high-performance resins with good processabilities, mechanical properties and heat-resistance, but a shortcoming in mechanical properties at high temperatures. To address this problem, the reactions between a terminal alkyne compound and an inner alkyne compound were investigated and the results show that the terminal acetylene group could react with the inner acetylene group, which leads to the increase in the reaction extent of the inner acetylene group. The terminal alkyne compound was introduced into a silicon-containing arylether arylacetylene resin to further investigated the effect of reactions among acetylene groups. As a result, when the content of terminal acetylene group reaches about 70% in a blended resin, the reaction extent of the inner acetylene groups reaches 68.7%, and the flexural strength of the blended resin at 300 celcius raises up to 34.6 MPa and increases by 242.5% as compared with the silicon-containing arylether arylacetylene resin without the terminal alkyne compound.