EFFECT OF BRANCHED ALKYL SPACERS IN LIQUID-CRYSTALLINE POLY[2,2-DIMETHYL(TRIMETHYLENE)TEREPHTHALOYL-BIS-4-OXYBENZOATE]

被引：7

作者：

LORENTE, J ^{[1
]}

MARCO, C ^{[1
]}

GOMEZ, MA ^{[1
]}

FATOU, JG ^{[1
]}

机构：

[1] CSIC,INST CIENCIA & TECNOL POLIMEROS,JUAN CIERVA 3,E-28006 MADRID,SPAIN

来源：

POLYMER | 1992年 / 33卷 / 01期

关键词：

LIQUID CRYSTALLINE POLYMERS; SMECTIC MESOPHASES; BRANCHED ALKYL SPACERS; POLY[2,2-DIMETHYL(TRIMETHYLENE)TEREPHTHALOYL-BIS-4-OXYBENZOATE;

D O I：

10.1016/0032-3861(92)90585-K

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

The effect of introducing lateral substituents in liquid crystalline poly[(trimethylene)terephthaloyl-bis-4-oxybenzoate] has been analysed. The 2,2-dimethyl derivative has been synthesized and has shown liquid crystalline behaviour. The temperature for the crystal-liquid crystal transition and the mesophase-isotropic transition have been considerably lowered with respect to the unsubstituted polymer. Such transitions have been characterized by X-ray, differential scanning calorimetry and optical microscopy and analysed as a function of the thermal treatment.

引用

页码：202 / 205

页数：4