侧链含砜基结构的聚硅氧烷的合成及其液晶性能

侧链含砜基结构的聚硅氧烷的合成及其液晶性能 STUDIES ON THE SYNTHESIS AND LIQUID CRYSTALLINE PROPERTIES OF POLYSILOXANES WITH SULFONE GROUP IN THE SIDE CHAIN 卓仁禧 Zhuo Renxi Liu Jiwan Liu Yun 1 first-author 刘基万 1 刘芸 1 武汉大学化学系 武汉大学化学系 Department of Chemistry,Wuhan University Department of Chemistry,Wuhan University 将砜基结构引入到聚硅氧烷侧链中,合成了砜基处于侧链不同位置的三类聚合物,并对这些聚合物进行了红外光谱, 1 H 核磁共振和元素分析鉴定及 DSC、热台偏光显微镜的表征。结果表明,砜基作为介晶侧链间隔基团的一部分导致聚合物液晶性能的消失;砜基作为介晶侧链的端基,所得聚合物具有液晶性能。 By addition reaction of polymethylhydrosiloxane with phenyl sulfone mo- nomers containing terminal olefin in the presence of chloroplatinic acid,7 new polysiloxanes with phenyl sulfone group located at different part in the side chain were synthesized.The chemical structures of these polysiloxanes were characterized by IR and 1 H NMR.Their liquid crystalline properties were also investigated.The result showed that when phenyl sulfone groups are present as part of the spacer in the polymer side chain,it would lead to the loss of liquld crystalline property. 二苯基砜 侧链型液晶 介晶基团 聚硅氧烷 phenyl sulfone liquid crystals mesogenic group polysiloxane O63;O634.4 1992-02-01 2021-04-01 2