Water and salt permeability of reinforcement polymer‐gel composite membrane |
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| Authors: | A. Mounir EL Sayed A. Yamauchi N. A. Darwish A. A. Abd EL‐Mageed S. F. Halim |
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| Affiliation: | 1. National Institute for Standards, Polymer Testing Laboratory, Al Haram 12211, Egypt;2. Physics Division, Graduate School of Science, Kyushu University, Fukuoka 812‐8581, Japan |
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| Abstract: | The charged mosaic polymer membrane (CMM) without reinforcement and the composite charged mosaic polymer membrane (CCMM) with reinforcement were investigated in terms of salt and water transport (permeability). The composite charged mosaic polymer membrane (CCMM) with reinforcement showed a unique transport behavior such as preferential material transport Lp and ω. Water permeability coefficient, Lp and salt permeability coefficient, ω were estimated by taking account of active layer thickness of composite polymer gel. The Lp and ω values of CCMM with reinforcement were larger than those of CMM without reinforcement. On the other hand, the reflection coefficient of CCMM, σ, showed negative value, which suggested preferential material transport to solvent transport. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008 |
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| Keywords: | composite polymer membrane permeability negative reflection coefficient transport number active layer reinforcement |
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