文献类型：会议论文

中文题名：Modification of Polyarylacetylene with Propargyl-Terminated Phenylether Oligomers

作者：QI Huimin[1];XIA Kefeng[1];SUN Fangxing[1];ZHUANG Yuanqi[1];HUANG Farong[1];

机构：[1]Key Laboratory for Ultrafine Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai 200237, P. R. China;

会议论文集：2007年先进纤维与聚合物国际会议论文集

会议日期：20071015

会议地点：上海

主办单位：东华大学

语种：英文

中文关键词：4,4'-dipropargyldiphenytether;resorcin dipropargylether;DMA;dielectric constaiat

摘要：In this paper, 4,4'-dipropargyldiphenylether and resorcin dipropargylether were prepared by the reaction of 4,4'-dihydroxy diphenylether and resorcinol with propargyi bromide, respectively. Their structures were confirmed with FTIR, <'1>H-NMR, MS etc. Copolymerization of diethynylbenzene with different fraction, 10％, 20％, 30％, of 4,4'- dipropargyl diphenylether or resorcin dipropargylether were investigated. The rheological analysis of the modified Polyarylacetylene (MPAA) resin, i.e. copolymers shows excellent processability. Dynamic mechanical analysis indicated that the cured MPAA resin shows good heat resistance with a glass transition temperature of over 350℃. The dielectric spectra of the cured MPAA show dielectric constant of ε=3.5-3.6.