POLY(ETHYLENE-CO-METHYL ACRYLATE) SOLVENT COSOLVENT PHASE-BEHAVIOR AT HIGH-PRESSURES

被引：27

作者：

MEILCHEN, MA ^{[1
]}

HASCH, BM ^{[1
]}

LEE, SH ^{[1
]}

MCHUGH, MA ^{[1
]}

机构：

[1] JOHNS HOPKINS UNIV,DEPT CHEM ENGN,BALTIMORE,MD 21218

来源：

POLYMER | 1992年 / 33卷 / 09期

基金：

美国国家科学基金会;

关键词：

COPOLYMER; COSOLVENT; HIGH PRESSURES;

D O I：

10.1016/0032-3861(92)90493-G

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Cloud-point data to 160-degrees-C and 2000 bar are presented showing the effect of cosolvents on the phase behaviour of poly(ethylene-co-methyl acrylate) (EMA) (64 mol%/36 mol%) with propane and chlorodifluoromethane (F22). Ethanol shifts the EMA-propane cloud-point curves to lower temperatures and pressures, but above approximately 10 wt% ethanol, the copolymer becomes insoluble. Up to 40 wt% acetone monotonically shifts the EMA-propane cloud-point curves to lower temperatures and pressures. Acetone and ethanol both shift the cloud-point curves of EMA-F22 mixtures in the same monotonic manner for cosolvent concentrations of up to 40 wt%.

引用

页码：1922 / 1925

页数：4

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