3-DIMENSIONAL ORDERING IN LIQUID-CRYSTALLINE POLY(ALKYL-4,4'-DIPHENOXY TEREPHTHALATE)S

被引：2

作者：

CAMPOY, I ^{[1
]}

GOMEZ, MA ^{[1
]}

MARCO, C ^{[1
]}

FATOU, JG ^{[1
]}

机构：

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

来源：

EUROPEAN POLYMER JOURNAL | 1993年 / 29卷 / 09期

关键词：

D O I：

10.1016/0014-3057(93)90144-5

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 kinetics of three dimensional ordering from the mesophase and from the isotropic state have been studied for poly(alkyl-4,4'-diphenoxy terephthalate)s with penta-, hexa- and hepta-methylenic spacers, using differential scanning calorimetry. The rates of transformation from the mesophase have been related with the previous conditioning temperature of the sample and the length of the spacer, and Avrami exponents of two and three have been found. The rate from the isotropic state have been measured for the penta and hepta derivatives and Avrami exponents of four and two, respectively, have been found. The interfacial free energies have been obtained from the temperature coefficient and discussed in terms of the process and the structure.

引用

页码：1161 / 1169

页数：9

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