MAIN CHAIN THERMOTROPIC POLYESTERS HAVING FLEXIBLE SPACERS - INFLUENCE OF ESTER GROUP LINKING ORDER BETWEEN MESOGENIC UNIT AND FLEXIBLE SPACER

被引：15

作者：

JIN, JI ^{[1
]}

CHOI, HS ^{[1
]}

CHOI, EJ ^{[1
]}

YOON, CJ ^{[1
]}

机构：

[1] SONG SIM WOMENS COLL,DEPT CHEM,BUCHON CITY,SOUTH KOREA

来源：

JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS | 1990年 / 28卷 / 04期

关键词：

D O I：

10.1002/polb.1990.090280408

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Two series of main chain thermotropic polyesters having a decamethylene spacer were prepared and their thermal transitions and liquid crystalline properties were studied. The linking sequence of the ester bond between the mesogenic unit and spacer, i.e., versus with M and S being mesogenic unit and spacer, respectively, was found to influence profoundly the nature of the mesophase formed by the polymers. The former favors the formation of a smectic phase, while the latter favors the formation of a nematic phase. The structure of the central dicarboxylic acid moiety of the triester mesogenic units also was found to influence greatly the polymer's ability to form mesophases. Copyright © 1990 John Wiley & Sons, Inc.

引用

页码：531 / 543

页数：13

共 11 条

[1] CONFIGURATIONAL ASPECTS OF THE ODD-EVEN EFFECT IN THERMOTROPIC LIQUID-CRYSTALLINE POLYESTERS [J].