Abstract
Permeabilities of oxygen and nitrogen gases were measured for crosslinked poly(vinyl alcohol) and poly(4-vinylpyridine) membranes swollen with aqueous solutions of nonvolatile electrolytes and nonelectrolytes. It was found that the permeabilities of the two gases change characteristically with the water content of the membranes, giving the ratio in the range, 25 to 0.5 at around 0.3 of tbe water content. The importance of the hydration layers of the substrate polymers as the permselective field is suggested based on the measurements of DSC and the partition of the nonvolatile compounds for the swollen membranes. Difffusion selectivity and solubility selectivity comprising the permselectivity are discussed.
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References
“Water A Comprehensive Treatise” F. Franks ed., vol. 1, Prenum, N. Y.-London, 1972.
“Water A Comprehensive Treatise” F. Franks Ed., vol. 2, 3 and 4, 1973, 1974 and 1975.
W.-Z. Zhang, M. Satoh, and J. Komiyama, J. Membrane Sci., 31, 147 (1987).
K. Ogata, M. Satoh, and J. Komiyama, presented at the 3rd International Polymer Conference (IPC 90), Nagoya, November 26–29, 1990.
W.-Z. Zhang, M. Satoh, and J. Komiyama, J. Membrane Sci., 40, 343 (1989).
W.-Z. Zhang, M. Satoh, and J. Komiyama, J. Membrane Sci., 35, 311 (1988).
W.-Z. Zbang, M. Satoh, and J. Komiyama, J. Membrane Sci., 42, 303 (1989).
A. Higuchi, H. Fushimi, and T. Iijima, J. Membrane Sci., 25, 171 (1985).
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Komiyama, J., Satoh, M., Zhang, WZ. et al. State of Water in Swollen Membrane in Relation to Permeability. Polym J 23, 379–388 (1991). https://doi.org/10.1295/polymj.23.379
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DOI: https://doi.org/10.1295/polymj.23.379
