THERMAL TRANSITIONS IN POLY(ALKYL-4,4'-DIPHENOXY TEREPHTHALATE)S

被引：6

作者：

CAMPOY, I ^{[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 BULLETIN | 1993年 / 31卷 / 01期

关键词：

D O I：

10.1007/BF00298770

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 thermal transitions of poly(alkyl-4,4'-diphenoxy terephthalate)s, in which the flexible spacer contains 5,6 and 7 methylene groups, have been studied by thermogravimetry, differential scanning calorimetry, X ray diffraction, thermoptical microscopy and small angle light scattering. The series shows a marked influence of the even and odd number of methylene groups on the crystal-liquid crystal transition temperatures and on the isotropization transition temperature. Nematic mesophases have been observed for the odd terms, and a transition from a smectic to a nematic mesophase has been observed for the even term.

引用

页码：97 / 104

页数：8

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