CHOLESTERIC LIQUID-CRYSTALLINE POLYESTERS .1. CHOLESTERIC LIQUID-CRYSTALLINE COPOLYESTERS BASED ON POLY(CHLORO-1,4-PHENYLENE TRANS-1,4-CYCLOHEXANEDICARBOXYLATE)

被引：26

作者：

HARA, H ^{[1
]}

SATOH, T ^{[1
]}

TOYA, T ^{[1
]}

IIDA, S ^{[1
]}

ORII, S ^{[1
]}

WATANABE, J ^{[1
]}

机构：

[1] TOKYO INST TECHNOL,DEPT POLYMER CHEM,TOKYO 152,JAPAN

来源：

MACROMOLECULES | 1988年 / 21卷 / 01期

关键词：

COPOLYMERS - Microscopic Examination - CRYSTALS; LIQUID;

D O I：

10.1021/ma00179a003

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Thermotropic copolyesters exhibiting cholesteric mesophases were prepared by introducing chiral (R)-3-methyladipate units into rigid poly(chloro-1,4-phenylene trans-1,4-cyclohexanedicarboxylate), and a morphology study of the solid cholesterics was examined by using a transmission electron microscopy method. The transmission electron micrographs showed a series of dark and bright striation lines which were attributed to the periodic structure of the cholesteric helix. Defects or imperfections such as disclinations and edge dislocations of the cholesteric layer texture were elucidated from the micrographs. These cholesteric copolyesters were also characterized by DSC, spectroscopic, and optical microscopic methods.

引用

页码：14 / 19

页数：6

共 26 条

[1]

BOULIGAND Y, 1980, DISLOCATIONS SOLIDS, pCH23

[2] CHIRAL LIQUID-CRYSTAL POLYMERS .6. PREPARATION AND PROPERTIES IN SOLUTION AND IN BULK OF OPTICALLY-ACTIVE THERMOTROPIC COPOLYESTERS [J].