MISCIBILITY IN CHLORINATED POLYBUTADIENE CHLORINATED POLYETHYLENE BLENDS - EFFECT OF CHAIN MICROSTRUCTURE

被引：16

作者：

MASSE, MA ^{[1
]}

UEDA, H ^{[1
]}

KARASZ, FE ^{[1
]}

机构：

[1] UNIV MASSACHUSETTS,DEPT POLYMER SCI & ENGN,AMHERST,MA 01003

来源：

MACROMOLECULES | 1988年 / 21卷 / 12期

关键词：

Chemical Reactions--Chlorination - Chlorine--Concentration - Polyethylenes--Mixing - Polyvinyl Chloride;

D O I：

10.1021/ma00190a015

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Blends of fully chlorinated polybutadiene (CPB) and partially chlorinated polyethylenes (CPE) were studied. It was found that CPB forms miscible mixtures with CPEs having chlorine contents between 48 and 56% by weight. The blends display upper critical solution temperatures above 150°C, depending on the chlorine content of the CPE, with reversible phase behavior. This phase behavior is in contrast to that observed in CPE/poly(vinyl chloride) (PVC) blends which are immiscible in the accessible equilibrium temperature range 110-180°C. The difference in the behavior of these two systems is attributed to the different sequence distributions of commonomer units in CPB and PVC.

引用

页码：3438 / 3442

页数：5

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