MORPHOLOGY AND PHASE-BEHAVIOR OF BLENDS OF A STYRENIC BLOCK-COPOLYMER IONOMER AND POLY(CAPROLACTONE)

被引：29
|
作者：
LU, XY
WEISS, RA
机构：
[1] UNIV CONNECTICUT,POLYMER SCI PROGRAM,STORRS,CT 06269
[2] UNIV CONNECTICUT,DEPT CHEM ENGN,STORRS,CT 06269
来源：
MACROMOLECULES | 1993年 / 26卷 / 14期
关键词：
D O I：
10.1021/ma00066a021
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 morphology and phase behavior of blends of a lightly sulfonated styrenic block copolymer ionomer and poly(caprolactone) (PCL) were investigated by small-angle X-ray scattering and differential scanning calorimetry. Miscibility of PCL in the ionomeric microphase was enhanced due to exothermic interactions between the sulfonate groups and the polyester. In the blends, PCL exhibited unique crystallization behavior due to the effects of miscibility and the restriction imposed by the microdomains. The addition of PCL also changed the microstructure of the block copolymer from a less ordered, elongated spherical morphology to a well-defined lamellar arrangement.
引用
收藏
页码：3615 / 3622
页数：8
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