Development of a Predictive Model for Polymer/Solvent Diffusion Coefficient Calculations

被引：4

作者：

Perioto, F. R. ^{[1
]}

Alvarez, M. E. T. ^{[1
]}

Araujo, W. A. ^{[1
]}

Wolf-Maciel, M. R. ^{[1
]}

Maciel Filho, R. ^{[1
]}

机构：

[1] Univ Estadual Campinas, Separat Proc Dev Lab, Sch Chem Engn, UNICAMP, BR-13083970 Campinas, SP, Brazil

来源：

JOURNAL OF APPLIED POLYMER SCIENCE | 2008年 / 110卷 / 06期

关键词：

free-volume theory; diffusion coefficients; viscosity; membrane; separation process;

D O I：

10.1002/app.28923

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

A new calculation procedure for free-volume parameters is considered in this work by using viscosity prediction methods and the Levenberg-Marquardt calculation scheme. All parameters used in the Vrentas-Duda free-volume theory can be estimated from pure component properties. The prediction results are compared with experimental data for some polymer/solvent systems. The diffusion coefficient calculated by Vrentas-Duda theory can be used in the modeling of membrane separation processes. (c) 2008 Wiley Periodicals, Inc. J Appl Polym Sci 110: 3544-3-551, 2008

引用

页码：3544 / 3551

页数：8

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