Abstract
Theories based on free-volume concepts have been developed to characterize the self and mutual diffusion coefficients of low molecular weight penetrants in rubbery and glassy polymer-solvent systems. These theories are applicable over a wide range of temperatures and concentrations. In this paper, two alternative freevolume based approaches used to evaluate the solvent self-diffusion in glassy polymer-solvent systems are compared in terms of their differences and applicability
Article PDF
Similar content being viewed by others
Explore related subjects
Discover the latest articles, news and stories from top researchers in related subjects.Avoid common mistakes on your manuscript.
References
Chow, T. S., “Molecular Interpretation of the Glass Transition Temperature of Polymer-Diluent Systems,”Macromolecules,13, 362 (1980).
Cohen, M. H. and Turnbull, D., “Molecular Transport in Liquids and Glasses,”J. Chem. Phys.,31, 1164 (1959).
Duda, J. L., Romdhane, I. H. and Danner, R. P., “Diffusion in Glassy Polymers Relaxation and Antiplasticization,”J. Non-Crystalline Solids,172-174, 715 (1994).
Ehlich, D. and Sillescu, H., “Tracer Diffusion at the Glass Transition,”Macromolecules,23, 1600 (1990).
Fujita, H., “Diffusion in Polymer-Diluent Systems,”Homopolym. Forsch.,3, 1 (1961).
Lodge, T. P., Lee, J. A. and Frick, T. S., “Probe Diffusion in Poly (vinyl acetate)/Toluene Solutions,”J. Polym. Sci.: Part B: Polym. Phys.,28, 2607 (1990).
Murphy, P. G., Macdonald, D. A. and Lickly, T. D., “Styrene Migration from General Purpose Polystyrene and High Impact Polystyrene into Food Simulating Solvents,”Food and Chemical Toxicology,30(3), 225 (1992).
Vrentas, J. S. and Duda, J. L., “Diffusion in Polymer-Solvent Systems I Re-examination of the Free-volume Thoery,”J. Polym. Sci.: Part B: Polym. Phys.,15, 403 (1977a).
Vrentas, J. S. and Duda, J. L., “Diffusion in Polymer-Solvent Systems-II A Predictive Theory for the Dependence of Diffusion Coefficients on Temperature, Concentration and Molecular Weight,”J. Polym. Sci.: Part B: Polym. Phys.,15, 417 (1977b).
Vrentas, J. S. and Duda, J. L., “A Free-volume Interpretation of the Influence of the Glass Transition on the Diffusion in Amorphous Polymers,”J. Appl. Polym. Sci.,22, 2325 (1978).
Vrentas, J. S. and Duda, J. L., “Molecular Diffusion in Polymer Solutions,”AIChE J.,25, 1 (1979).
Vrentas, J. S. and Vrentas, C.M., “Fickian Diffusion in Glassy Polymer-Solvent Systems,”J. Polym. Sci.: Part B: Polym. Phys.,30, 1005 (1992).
Vrentas, J. S. and Vrentas, C. M., “Evaluation of Free-volume Theories for Solvent Self-diffusion in Polymer-solvent systems,”J. Polym. Sci.: Part B: Polym. Phys.,31, 69 (1993).
Vrentas, J. S. and Vrentas, C.M., “Solvent Self-diffusion in Rubbery Polymer-solvent Systems,”Macromolecules,27, 4684 (1994a).
Vrentas, J. S. and Vrentas, C.M., “Solvent Self-diffusion in Glassy Polymer-solvent Systems,”Macromolecules,27, 5570 (1994b).
Vrentas, J. S., Vrentas, C. M. and Faridi, N., “Effect of Solvent Size on Solvent Self-diffusion in Polymer-solvent Systems,”Macromolecules,29, 3272 (1996).
Vrentas, J. S. and Vrentas, C. M., “Predictive Methods for Self-diffusion and Mutual Diffusion Coefficients in Polymer-solvent Systems,”Eur. Polym. J.,34, 797 (1998).
Zielinski, J. M. and Duda, J. L., “Predicting Polymer-solvent Diffusion Coefficients using Free-volume Theory,”AIChE. J.,38(3), 405 (1992).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Ramesh, N., Duda, J.L. Diffusion in polymers below the glass transition temperature: Comparison of two approaches based on free volume concepts. Korean J. Chem. Eng. 17, 310–317 (2000). https://doi.org/10.1007/BF02699046
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02699046