Prediction of the molecular-weight dependence of mutual diffusion coefficients in polymer-solvent systems

2003 ◽  
Vol 89 (10) ◽  
pp. 2778-2779 ◽  
Author(s):  
J. S. Vrentas ◽  
C. M. Vrentas
Keyword(s):  
Molecular Weight ◽  
Diffusion Coefficients ◽  
Mutual Diffusion ◽  
Molecular Weight Dependence ◽  
Solvent Systems ◽  
Polymer Solvent

Binary Mutual Diffusion Coefficients of Polymer/Solvent Systems Using Compressible Regular Solutions Theory and Free Volume Theory

2016 ◽  
Vol 41 (3) ◽  
Author(s):  
Arsalan Farajnezhad ◽  
Orang Asef Afshar ◽  
Milad Asgarpour Khansary ◽  
Saeed Shirazian
Keyword(s):  
Free Volume ◽  
Diffusion Coefficients ◽  
Pure Component ◽  
Mutual Diffusion ◽  
Free Volume Theory ◽  
Chemical Thermodynamic ◽  
Fugacity Coefficients ◽  
Solvent Systems ◽  
Polymeric Solutions ◽  
Polymer Solvent

AbstractThe free volume theory has found practical application for prediction of diffusional behavior of polymer/solvent systems. In this paper, reviewing free volume theory, binary mutual diffusion coefficients in some polymer/solvent systems have been systematically presented through chemical thermodynamic modeling in terms of both activity coefficients and fugacity coefficients models. Here chemical thermodynamic model of compressible regular solution (CRS) was used for evaluation of diffusion coefficients calculations as the pure component properties would be required only. Four binary polymeric solutions of cyclohexane/polyisobutylene,

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