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
收藏
页码：202 / 205
页数：4
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