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含硅芳香二胺的合成及其聚酰亚胺硅氧烷的热性能
引用本文:陈蓓,眭秀楣,王东.含硅芳香二胺的合成及其聚酰亚胺硅氧烷的热性能[J].高分子学报,1994,0(6):717-724.
作者姓名:陈蓓  眭秀楣  王东
作者单位:中国科学院化学研究所
摘    要:从p-或m-氯苯胺出发,经三步反应合咸位置弄构的四甲基[双(苯胺)]二硅氧烷和六甲基[双(苯胺)]三硅二氧烷,总产率为25%.与芳香二胺和芳香四酸二酐共聚得聚酰亚胶硅氧烷.研究了共聚物在玻璃化转变区的热松弛行为.对位异构体的共聚物,其分子链段的构象熵大,运动较易.

关 键 词:含硅芳香二胺,聚酰亚胺硅氧烷,热性能,构象熵
收稿时间:1993-11-05

SYNTHESIS OF SILICON-CONTAINING AROMATIC DIAMINES AND THERMAL PROPERTIES OF CORRESPONDING POLYIMIDE SILOXANES
CHEN Pei,XU kiu-mei,WANG Dong.SYNTHESIS OF SILICON-CONTAINING AROMATIC DIAMINES AND THERMAL PROPERTIES OF CORRESPONDING POLYIMIDE SILOXANES[J].Acta Polymerica Sinica,1994,0(6):717-724.
Authors:CHEN Pei  XU kiu-mei  WANG Dong
Institution:Institute of Chemistry; Academia Sinica; Beijing; 100080
Abstract:Staning from p- or m-chioroaniline, silicon-containing aromatic diamines weresynthesized through amino-proteCtion by trimethylsilyl group, Wurtz coupling reaction and deprotction with overall yield of 25%.Copolymerization ofsilicon-containing aromatic diamines, aromatic diamines and tetracarboxylic aciddianhydrides was carried out and thermal analysis of corresponding poiymidesiloxanes was determined. The effect of Para and meta regioisomers on the thermalrelaxation behaviour in Tg transition was examined, which attributed to differentconformation entropy in the structure of two regiosubstituted moieties.
Keywords:Silicon-containing aromatic diandne  Polyimide silo-cane  Thermal property  Conformation entropy  
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