作　　者： ; ; ;

机构地区： 郑州大学化学与分子工程学院

出　　处： 《高分子学报》 1990年第6期694-702,共9页

摘　　要： 以低温溶液缩聚方法,合成了一系列主链上具有X-型液晶基元的液晶高分子。所有聚合物样品均具有明显的热致液晶性。不同柔性链段长度和取代基对聚合物的液晶性呈规律性的影响。并用IR、H-NMR、WAXD和热台偏光显微镜等方法对聚合物进行了表征。 A series of the main chain liquid crystal polymers with X-shaped mesogens were synthesi-ed by low temperature solution polycondensation. All polymer samples had obvious thermotropic properties. Both flexible spacers and substituents had influence on the liquid-crystalline behaviour of the polymers The polymers were characterized by IR spectrometer, H-NMR spectro-scopy, DSC, polarizing microscopy and X-ray diffractometre.

关 键 词： 液晶 液晶高分子 型液晶基元

领　　域： [理学]