MICROSTRUCTURE AND PROPERTY CHANGES ACCOMPANYING HARD-SEGMENT CRYSTALLIZATION IN BLOCK COPOLY(ETHER ESTER) ELASTOMERS

被引：43

作者：

STEVENSON, JC ^{[1
]}

COOPER, SL ^{[1
]}

机构：

[1] UNIV WISCONSIN,DEPT CHEM ENGN,MADISON,WI 53706

来源：

MACROMOLECULES | 1988年 / 21卷 / 05期

关键词：

CALORIMETRY; -; ELASTOMERS; Crystallization; X-RAYS; Scattering;

D O I：

10.1021/ma00183a022

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Hard-segment crystallization is a primary factor governing the properties of copoly(ether-ester) elastomers composed of poly(tetramethylene oxide) soft segments and poly(tetramethylene terephthalate) and/or poly(tetramethylene isophthalate) hard segments. Differential scanning calorimetry, tensile testing, and small-angle X-ray scattering have been used to follow the structure and property changes occurring during the room-temperature crystallization of copoly(ether-ester) elastomers in which poly(tetramethylene isophthalate) is the major hard-segment component. The measurements show that crystallization leads to significant improvements in tensile properties, particularly as the sample crystalline weight fraction increases from 0. 05 to 0. 10.

引用

页码：1309 / 1316

页数：8

共 27 条

[1] THE 2-PHASE STRUCTURE OF SEGMENTED BLOCK COPOLY(ETHER ESTER) [J].