Predicting polymer/solvent diffusion coefficients using free-volume theory

AIChE Journal ◽  
1992 ◽  
Vol 38 (3) ◽  
pp. 405-415 ◽  
Author(s):  
John M. Zielinski ◽  
J. L. Duda
Keyword(s):  
Free Volume ◽  
Diffusion Coefficients ◽  
Free Volume Theory ◽  
Solvent Diffusion ◽  
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,

A free volume theory on the chain length dependence of the diffusivity of linear polymers

Soft Matter ◽  
2019 ◽  
Vol 15 (45) ◽  
pp. 9300-9309 ◽  
Author(s):  
Chi Pui Jeremy Wong ◽  
Phillip Choi
Keyword(s):  
Chain Length ◽  
Free Volume ◽  
Diffusion Coefficients ◽  
Linear Polymers ◽  
Free Volume Theory ◽  
Length Dependence

A free volume theory for the crossover in diffusion coefficients of linear polymers from unentangled to entangled regimes is developed.

Predictive capabilities of a free-volume theory for solvent self-diffusion coefficients

1989 ◽  
Vol 27 (5) ◽  
pp. 1179-1184 ◽  
Author(s):  
J. S. Vrentas ◽  
C.-H. Chu ◽  
M.C. Drake ◽  
E. von Meerwall
Keyword(s):  
Free Volume ◽  
Diffusion Coefficients ◽  
Free Volume Theory ◽  
Self Diffusion
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