摘要
合成了对－（４－烯丙氧基苯甲酰氧基）苯甲酸联苯酚酯，将其与聚甲基氢硅氧烷反应得到侧链型液晶聚硅氧烷．用红外及１Ｈ－ＮＭＲ方法证实了所合成的单体及聚合物的结构．从ＮＭＲ谱上得出，聚合物含有１７．６％的α－加成侧链，与作者不久前提出的液晶聚硅氧烷一般都含有一定比例的α－加成侧链的推测相吻合．此外还用热台偏光显微镜方法研究了单体与聚合物的相行为．
A liquid crystalline polysiloxane is prepared by a hydrosilation reaction of poly(methylhydrosiloxane) with [p ((4 allyloxy)benzoxy)benzoxy]biphynyl.The chemical structure of the monomer and polymer is confirmed by IR and H NMR analysis.From the NMR spectrum as many as 17.6% α addition side chains are found,which supports our presumption that a liquid crystalline polysiloxane generally has an isomeric structure in side chains.In addition,the phase behavior of monomer and polymer is studied by DSC measurements and optical polarized microscopy method.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1997年第9期104-108,共5页
Journal of Shanghai Jiaotong University
基金
霍英东高校青年教师基金
关键词
液晶
聚硅氧烷
侧链型
高分子液晶
合成
liquid crystalline polymer
polysiloxane
hydrosilation reaction
structure analysis
