偶氮苯侧链共聚硅氧烷的合成及液晶行为的研究  

SYNTHESIS AND LIQUID CRYSTALLINE BEHAVIOR OF POLYSILOXANE CONTAINING AZOBENZENE SIDE GROUPS

作　　者：侯昭升[1] 张其震[1] 王大庆[2] 朱鸣岗[1] 王冰冰[1] 

机构地区：[1]山东大学化学与化工学院,济南250100 [2]山东师范大学测试中心,济南250014

出　　处：《高分子学报》2002年第6期742-745,共4页Acta Polymerica Sinica

基　　金：国家自然科学基金资助项目 (基金号 5 95 730 29和 2 98740 2 0 )

摘　　要：以苯酚、十一烯酸、正溴己烷、对硝基苯酚和二氯亚砜为主要原料 ,通过取代、还原、重氮化和偶合等反应 ,合成了一种新的液晶单体 4 己氧基 4′ 十一烯 [1 0 ] 酰氧基偶氮苯 ,并与聚 (甲基氢硅氧烷 )通过硅氢加成生成一种新的高分子液晶 .通过1 H NMR和IR对单体和聚合物的结构进行了表征 ,并证实了聚合物的硅氢化程度近于完全 .通过DSC和热台偏光显微镜 (POM)对单体和聚合物的液晶行为进行了研究 。A new monomer, 4-hexanoxyl-4'-undecylene-[10]-acyloxyazobenzene was synthesized using the main materials: phenol, underlenic acid,1-bromo-n-hexane, p-nitrophenol, thionyl chloride, by the substitution, reduction, couping and diazotization methods. A new polymer was prepared by hydrosilation reaction of poly (methylhydrosiloxane) with the monomer. The chemical structure of the monomer and the polymer was confirmed by H-1-NMR and IR measurements and the full hydrosilation reaction of the polymer was confirmed. The liquid crystalline properties of the monomer and the polymer were investigated by using different scanning calorimetry (DSC) and polarized optical microscopy(POM), and their liquid crystallinity was evidenced.

关 键 词：偶氮苯 侧链 共聚 合成 液晶行为 聚硅氧烷 近晶相 

分 类 号：O753[理学—晶体学]