光致变色液晶高分子的研究（Ⅰ）──含胆甾介晶基无侧链聚硅氧烷及其单体的液晶行为  

Studies on Photochromic Liquid Crystalline Polymers(Ⅰ)──Liquid Crystalline Behaviour or Side-Chain Polysiloxane Containing Cholesteric Mesogens and Its Monomer

作　　者：张其震[1] 王艳[1] 

机构地区：[1]山东大学化学系

出　　处：《高等学校化学学报》1994年第6期928-931,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金;中国科学院高分子物理联合开放实验室(中国科学院化学研究所)科学基金

摘　　要：用ＰＯＭ、ＤＳＣ和ＷＡＸＤ研究了十一烯酸胆甾酯及含胆甾介晶基元侧链聚硅氧烷的液晶行为。单体呈现明甾相的油条及螺旋织构，单致变近晶相的扇形织构和固－固相变。均聚物显示Ｓ_Ａ相的扇形织构。The liquid crystalline properties of polysiloxane with cholesteric mesogens in sidechain and its monomer were characterized by polarized microscopy with a hot stage, DSC and x-ray diffraction.Cholesteric texture with oily streaks and spirals,monotropic smectic with fan-shaped and solid-solid transition were observed in monomer while only the smectic phase was exhibited by polysiloxane fan-shaped texture.

关 键 词：液晶高聚物 聚硅氧烷 光致变色 

分 类 号：O753.2[理学—晶体学]