ENTROPIC CORRECTIONS TO THE FLORY-HUGGINS THEORY OF POLYMER BLENDS - ARCHITECTURAL AND CONFORMATIONAL EFFECTS

被引：261
|
作者：
FREDRICKSON, GH
LIU, AJ
BATES, FS
机构：
[1] UNIV MINNESOTA,DEPT CHEM ENGN & MAT SCI,MINNEAPOLIS,MN 55455
[2] UNIV CALIF SANTA BARBARA,DEPT MAT,SANTA BARBARA,CA 93106
来源：
MACROMOLECULES | 1994年 / 27卷 / 09期
关键词：
D O I：
10.1021/ma00087a019
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
We compute fluctuation corrections to the Flory-Huggins theory for a thermal or nearly athermal polymer mixtures. These excess free energy contributions arise from architectural and flexibility differences between components, are quasi-universal, and are generally positive, favoring demixing. Specific cases considered are binary blends of linear homopolymers, homopolymer/block copolymer mixtures, and blends of branched and linear homopolymers. We identify invariant parameters and mixing rules for such systems that may facilitate the design of miscible polyolefin blends.
引用
收藏
页码：2503 / 2511
页数：9
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