热致液晶性聚合物的序态结构及其相变行为  

The Sequence Structure and Liquid Crystalline Behavior of Thermotropic Liquid Crystal Polymers

作　　者：梁恕湘 余其汝[1] 范大熙[1] 李德芬[1] 

机构地区：[1]化工部成都有机硅研究中心,610041

出　　处：《塑料工业》1995年第4期37-41,共5页China Plastics Industry

基　　金：国家863项目资助课题

摘　　要：本文介绍用透射电子显微镜(TEM)、光学显微镜(OM)、热台X射线衍射(HXRD)等方法研究组成不同全芳香族热致液晶聚合物的序态结构和液晶行为.研究结果表明,它们在序态结构、相变热效应以及衍射强度随温度的变化规律等方面存在明显差异.并证明这种差异不仅取决于材料的组成,而且在一定条件下取决于晶体发育程度和其本身的致密性.The sequence structure and liquid crystalline behavior of wholly aromatic polymers with different composition were studied by several methods such as TEM, PM hot-stage XRD techniques, etc. The results showed that there was great difference in the transformation heat effect and the liquid behavior of the polymers. It was also shown that the liquid crystalline behavior of the polyester depended not only on its composition, but also on the crystal-growth and compact-grain.

关 键 词：热致液晶 聚合物 序态结构 相变 液晶行为 

分 类 号：O631.13[理学—高分子化学] O753[理学—化学]