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化学进展 2005, Vol. 17 Issue (01): 40-44 前一篇   后一篇

• 综述与评论 •

聚合物溶液热力学模型的评述*

程振锋　刘庆林**   

  1. (厦门大学化学工程与生物工程系　厦门361005)
  • 收稿日期:2003-11-01 修回日期:2004-04-01 出版日期:2005-01-24 发布日期:2005-01-24
  • 通讯作者: 刘庆林 E-mail:qlliu @jingxian. xmu. edu. cn
  • 基金资助:

    国家自然科学基金;教育部留学回国人员科研启动基金

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Review of Thermodynamic Models in Polymer Solutions

Cheng Zhenfeng 　Liu Qinglin**   

  1. (Department of Chemical and Biochemical Engineering , Xiamen University , Xiamen 361005 , China)
  • Received:2003-11-01 Revised:2004-04-01 Online:2005-01-24 Published:2005-01-24
  • Contact: Liu Qinglin E-mail:qlliu @jingxian. xmu. edu. cn

预测聚合物溶液体系的气液平衡数据是热力学模型的一个重要内容。热力学模型大体可分3 类,以过量吉布斯自由GF 能表示的最为常用。本文选取基于GF 的Flory2Huggins (FH) 、UNIQUAC、UNIFAC 和 ENSIC 4 种常用模型进行评述,认为FH 模型出现较早,形式最简单;UNIQUAC 模型发展较完善,应用范围较广,UNIFAC 模型弥补了UNIQUAC 模型参数缺乏的不足,应用最为广泛; ENSIC 模型具有较好的预测效果,但参数难以获得。

关键词： 热力学模型, 聚合物溶液, 自由体积, 活度

The equilibrium data of solvent2polymer systems are important to industrial processes , while they are very difficult to be obtained directly because of the complexity of the systems. It appears to be vital to obtain the data of solvent2polymer systems accurately by establishing thermodynamic models. This work presents a review of the four impor2 tant thermodynamic models , e. g. , UNIFAC , UNIQUAC , Flory2Huggins (FH) and ENSIC. Generally , they all can be used to predict the phase equilibriumof polymer2solvent systems. Of those , UNIFAC model is used most often , FH model is the simplest , ENISC model is showed to be the most accurate and UNIQUAC model is seemed to be applicable to most of the systems.

Key words: thermodynamic models, polymer solutions, free2volume, activity

中图分类号: 

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[1] 胡霞林,刘景富,卢士燕,江桂斌. 环境污染物的自由溶解态浓度与生物有效性*[J]. 化学进展, 2009, 21(0203): 514-523.
[2] 王振亚,郝立庆,张为俊. 二次有机气溶胶的气体/粒子分配理论*[J]. 化学进展, 2007, 19(01): 93-100.
[3] 王前,许旭. 用于毛细管电泳DNA分离的合成聚合物*[J]. 化学进展, 2003, 15(04): 275-.
[4] 李以圭,李春喜. 电解质溶液的分子热力学模型研究进展[J]. 化学进展, 1996, 8(02): 155-.
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摘要

聚合物溶液热力学模型的评述*