光致变色聚硅氧烷液晶高分子的合成及液晶行为  

SYNTHESIS AND LIQUID CRYSTALLINE BEHAVIOR OF POLYSILOXANE-PHOTOCHROMIC LIQUID CRYSTALLINE POLYMER

作　　者：侯昭升[1] 张其震[1] 朱鸣岗[1] 李桂英[1] 李爱香[1] 

机构地区：[1]山东大学化学与化工学院,山东济南250100

出　　处：《高分子材料科学与工程》2004年第4期77-80,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(59573029;29874020)

摘　　要：通过取代、还原、重氮化和偶合等反应,合成了一种新的光致变色液晶单体4-丁氧基-4′-十一烯-[10]-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光致变色高分子液晶。通过1H-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,证明了都具有液晶性。New photochromic liquid crystalline monomer, 4-butoxyl-4′-undecylene--acyloxyazobenzene was synthesized by the substitution, reduction, couping, diazotization methods. New photochromic liquid crystalline polymer was prepared by hydrosilation reaction of poly(methylhydrosiloxane) with the monomer. The chemical structure of monomer and polymer was confirmed by ~1H-NMR?IR, and the full hydrosilation reaction of the polymer is confirmed also. The liquid crystalline properties of monomer and polymer was investigated by DSC and POM with a hot stage, and their liquid crystalline properties were found.

关 键 词：光致变色 聚硅氧烷 液晶高分子 合成 液晶行为 近晶相 

分 类 号：TQ264.17[化学工程—有机化工]