摘要
以对苯二酚及对氟苯甲腈为原料,合成了1,4-二(4-羧基苯氧基)苯,再经磺化反应合成了1,4-二(4-羧基苯氧基)苯-2-磺酸钠(BCPOBS-Na),并以4,4'-二羧基二苯醚(DCDPE)作为非磺化二酸单体与3,3'-二氨基联苯胺反应合成了一系列磺化聚苯并咪唑(SPBI).通过红外光谱、核磁共振及热重分析等手段对聚合物的结构及性能进行了分析.研究了聚合物的特性黏度、溶解性、成膜性及聚合物薄膜的力学性能.
A series of sulfonated polybenzimidazoles（SPBI） was prepared via the condensation polymerization of 1,4-bis（4-carboxyphenoxy）benzene-2-sulfonate,4,4′-dicarboxydiphenyl ether and 3,3′-diaminobenzidine in phosphorus pentoxide/methanesulfonic acid in a mass ratio of 1∶ 10.The structures and properties of sulfo-nated polybenzimidazoles were confirmed by FTIR,NMR and TGA.They show good solubility in polar solvents,high thermal stability,good film forming ability and excellent mechanical properties.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2012年第3期645-648,共4页
Chemical Journal of Chinese Universities
