SYNTHESIS OF LIQUID CRYSTALLINE COPOLYESTERS WITH T-SHAPED TWO-DIMENSIONAL MESOGENIC UNIT AND CROWN ETHER CYCLE  

作　　者：张晓静 李自法 

机构地区：[1]Collenge of Material and Chemical Engineering,Zhengzhou University of Light Industy [2]Collenge of Materials and Engineering,Zhengzhou University

出　　处：《Chinese Journal of Polymer Science》2008年第2期171-176,共6页高分子科学（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(No.29974026);the Natural Science Foundation of Henan Province(No.0211021100);the Education Department Foundation of Henan Province(No.20021500004).

摘　　要：A novel series of liquid crystalline copolyesters with T-shaped two-dimensional mesogenic unit and crown ether cycle of cis-4,4′-bis(4-hydroxyphenylazo)dibenzo-18-crown-6 was prepared via solution condensation polymerization from 4,4′-(α,ω-hexanedioyloxy)dibenzoyl dichloride(M_1),2-(4′-ethoxyphenyl)hydroquinone(M_2)and cis-4,4′-bis(4- hydroxyphenylazo)dibenzo-18-crown-6(M_3).The molecular weights of copolyesters are not high,and the intrinsic viscosity [η]of copolyesters ranges from 0.29-0.43.The monomers ...A novel series of liquid crystalline copolyesters with T-shaped two-dimensional mesogenic unit and crown ether cycle of cis-4,4′-bis(4-hydroxyphenylazo)dibenzo-18-crown-6 was prepared via solution condensation polymerization from 4,4′-(α,ω-hexanedioyloxy)dibenzoyl dichloride(M_1),2-(4′-ethoxyphenyl)hydroquinone(M_2)and cis-4,4′-bis(4- hydroxyphenylazo)dibenzo-18-crown-6(M_3).The molecular weights of copolyesters are not high,and the intrinsic viscosity [η]of copolyesters ranges from 0.29-0.43.The monomers ...

关 键 词：T-shaped two-dimensional mesogenic unit Crown ether Liquid Crystalline copolyesters Synthesis. 

分 类 号：O633.14[理学—高分子化学]