STUDY ON LIQUID CRYSTAL POLYMERS WITH TWO-DIMENSIONAL MESOGENIC UNITS  

作　　者：张春晓 李自法 周其凤 周洪兵 

机构地区：[1]Chem. Dept., Zhengzhou Univ., Zhengzhou 450052 [2]Chem. Dept., Peking Univ., Beijing 100871

出　　处：《Chinese Journal of Polymer Science》1993年第4期58-63,共6页高分子科学（英文版）

基　　金：This work was supported by the FEYUT, SEDC, CHINA and by the National Natural Science Foundation of China.

摘　　要：A series of liquid crystalline polymers with two-dimensional mesogenic units were synthesized by solution polycondensation at low temperature. All the polymers were liquid crystalline. The melting temperature T;（except that with substituent of methoxy） and the clearing temperature T;of the polymers change regularly with varying of the length of the alkyl substituent groups.A series of liquid crystalline polymers with two-dimensional mesogenic units were synthesized by solution polycondensation at low temperature. All the polymers were liquid crystalline. The melting temperature T_m (except that with substituent of methoxy) and the clearing temperature T_i of the polymers change regularly with varying of the length of the alkyl substituent groups.

关 键 词：Liquid crystal polymer Two-dimensional mesogenic unit N-2 '  5 '-dihydroxy benzylidene-4-alkoxyaniline Monotropic nematics 

分 类 号：O63[理学—高分子化学]