Gas permeabilities of perfluorocarboxylate membranes in various ionic forms
β Scribed by Yong Taek Lee; Kazutoshi Iwamoto; Manabu Seno
- Book ID
- 117511451
- Publisher
- Elsevier Science
- Year
- 1990
- Tongue
- English
- Weight
- 545 KB
- Volume
- 49
- Category
- Article
- ISSN
- 0376-7388
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The permeabilities of three kinds of solutes with similar sizes such as anionic benzenesulfonic acid, neutral styrene glycol, and cationic theophylline in the chitosan membrane were investigated. The chitosan membrane becomes cationic below its pKa value. Benzenesulfonic acid showed the highest perm
## Abstract A new molecular thermodynamic model is developed of the gas permeability in polymer membranes on the basis of configurational entropy and FloryβHuggins theory to predict permeability dependence on the concentration of penetrant. Three kinds of configurational entropy are taken into acco