文献类型：会议论文

英文题名：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]E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China

会议论文集：International Conference on Advanced Fibers and Polymer Materials

会议日期：OCT 15-17, 2007

会议地点：Shanghai, PEOPLES R CHINA

语种：英文

外文关键词：4,4'-dipropargyldiphenylether; resorcin dipropargylether; DMA; dielectric constant

摘要：In this paper, 4,4'-dipropargyldiphenylether and resorcin dipropargylether were prepared by the reaction of 4,4'-dihydroxy diphenylether and resorcinol with propargyl bromide, respectively. Their structures were confirmed with FTIR, H-1-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 degrees C. The dielectric spectra of the cured MPAA show dielectric constant of epsilon=3.5-3.6.