Abstract
When the glass-transition temperature of the polymer is not so much higher than the experimental temperature, the pressure dependence of the mean permeability coefficient of the poly-mer membrane to a gas is apt to deviate from the prediction by the conventional dual-mode mobility model, and to obey a similar model with concentration-dependent diffusivities because of the plasticization action of sorbed gas in the polymer membrane. In this work, sorption and permeation for oxygen and carbon dioxide in a membrane of polystyrene whose glass-transition temperature is 95°C, were measured to discuss the mechanism of gas diffusion in glassy polymer membranes with relatively low glass-transition temperature at 30, 40 and 50°C respectively.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Sada, E., Kumazawa, H. and Xu, P.:J. Appl. Polym. Set,35, 1497 (1988).
Sada, E., Kumazawa, H., Xu, P. and Nishigaki, M.:J. Membrane Sci,37, 165 (1988).
Kumazawa. H., Wang, J. S., Fukuda, T. and Sada, E.:J. Membrane Sci., in press.
Zhou, S. and Stern, S.A.:J. Polym. Sci: Part B: Polym. Phys.,27, 205 (1989).
Sada, E., Kumazawa, H. and Wang, J. S.:J. Polym. Sci: Part B: Polym. Phys.. 30, 105(1992).
Marquardt, D. W.:/.Soc. Industr. Math.,11, 2 (1963).
Paul, D. R. and Koros, W.J.:J. Polym. Sci. Polym. Phys. Ed.,14, 675(1976).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bae, SY., Cho, DH., Ko, SW. et al. Gas permeation through glassy polymer membranes with relatively low glass-transition temperature. Korean J. Chem. Eng. 10, 44–48 (1993). https://doi.org/10.1007/BF02697376
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02697376