MISCIBILITY AND RAPID PHASE-TRANSITION BEHAVIOR IN POLY-(VINYLIDENE FLUORIDE-CO-HEXAFLUORO ACETONE) POLY(ETHYLENE-CO-VINYL ACETATE) BLENDS

被引：12

作者：

HASEGAWA, M ^{[1
]}

AKIYAMA, S ^{[1
]}

机构：

[1] TOKYO UNIV AGR & TECHNOL,FAC GEN EDUC,CHEM LAB,FUCHU,TOKYO 183,JAPAN

来源：

POLYMER JOURNAL | 1988年 / 20卷 / 06期

关键词：

PLASTICS - Phase Equilibria - POLYMERS - Blending;

D O I：

10.1295/polymj.20.471

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 phase equilibrium and phase transition for miscible polymer blends of poly(vinylidene fluoride-co-hexafluoro acetone) left bracket p(VDF-HFA) right bracket /poly(ethylene-co-vinyl acetate) (EVAc) were investigated using DSC, dynamic mechanical loss measurements, and thermophotometry. It was found that blends of p(VDF-HFA) and EVAc with vinyl acetate (VAc) content more than 86. 0 wt% are miscible, but p(VDF-HFA)/EVAc with less than 45. 4 wt% of VAc are immiscible. It was also found that a blend of p(VDF-HFA)/EVAc (VAc: 70 wt%) (EVAc 70) has a LCST type phase diagram, and shows markedly rapid phase transition with temperature dropping.

引用

页码：471 / 476

页数：6

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