Calculation of phase diagram of polymer solution over supercritical fluid region based on the Patterson-Delmas theory of corresponding state

被引：7

作者：

Saeki, S ^{[1
]}

机构：

[1] Fukui Univ, Dept Mat Sci & Engn, Fukui 910, Japan

来源：

FLUID PHASE EQUILIBRIA | 1997年 / 136卷 / 1-2期

关键词：

phase diagram; polymer solution; supercritical fluid; Patterson-Delmas theory;

D O I：

10.1016/S0378-3812(97)00110-6

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Based on the Patterson-Delmas theory of corresponding state and the equation of state by Flory, the polymer-solvent interaction parameter chi(1) in the Flory-Huggins theory has been calculated over a temperature range including the supercritical fluid region of solvent and a wide range of pressure up to 1.0 x 10(4) bar. The temperature dependence of chi(1) parameter at constant pressure over the supercritical fluid region is expressed by a parabolic-like with a maximum, and a closed-loop phase diagram is calculated in nonpolar polymer solution by the Flory-Huggins theory and the temperature dependence of chi(1) parameter in this work. (C) 1997 Elsevier Science B.V.

引用

页码：87 / 92

页数：6

共 17 条

[1] PHASE EQUILIBRIA OF POLYMER-SOLVENT SYSTEMS AT HIGH PRESSURES NEAR THEIR CRITICAL LOCI - POLYETHYLENE WITH N-ALKANES [J].