Phase behavior of polymer-solvent mixtures

被引：6

作者：

Gromov, DG ^{[1
]}

de Pablo, JJ ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Chem Engn, Madison, WI 53706 USA

来源：

FLUID PHASE EQUILIBRIA | 1998年 / 150卷

关键词：

molecular simulation; vapor-liquid equilibria; polymers; supercritical solvents;

D O I：

10.1016/S0378-3812(98)00345-8

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Phase equilibria for mixtures of a polymer and a supercritical solvent are investigated by means of Expanded Gibbs Ensemble simulations. Our results indicate that such systems exhibit both lower and upper critical solution temperature (LCST and UCST) phenomena. Closed-loop miscibility diagrams are observed for systems with no specific preferences for like and unlike components. The results of our simulations for Lennard-Jones polymer-solvent mixtures are in qualitative agreement with experimental data for polymers in supercritical solvents. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：657 / 665

页数：9

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