MISCIBILITY OF POLY(VINYL METHYL-ETHER) WITH STYRENE-CO-METHYL METHACRYLATE RANDOM COPOLYMERS REEXPLORED BY FLUORESCENCE QUENCHING EXPERIMENTS

被引：3

作者：

HALARY, JL ^{[1
]}

LEVIET, MH ^{[1
]}

KWEI, TK ^{[1
]}

PEARCE, EM ^{[1
]}

机构：

[1] POLYTECH INST NEW YORK,DEPT CHEM,BROOKLYN,NY 11201

来源：

MACROMOLECULES | 1991年 / 24卷 / 22期

关键词：

D O I：

10.1021/ma00022a007

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 miscibility of poly(vinyl methyl ether) (PVME) with a series of styrene-co-methyl methacrylate random copolymers (ScoMMA) was examined by using the fluorescence quenching technique previously developed for the study of PVME-polystyrene (PS) blends. These observations on the molecular scale yield results at variance with previous cloud-point measurements, which have led to the conclusion that the maximum value of LCST of the pair PVME-ScoMMA exceeds that of the pair PVME-PS. Equilibrium phase diagram determinations suggest that the presence of MMA units does not generate any noticeable synergy property. It is shown to provoke only a pronounced slowing down of the phase-separation rate, as the result of the corresponding change in the friction coefficient.

引用

页码：5939 / 5942

页数：4

共 14 条

[1] MISCIBILITY OF POLYVINYL METHYL-ETHER) WITH STYRENE METHYL-METHACRYLATE COPOLYMERS [J].