Ionic mobility in water-swollen poly(vinyl alcohol) membranes.
نویسندگان
چکیده
منابع مشابه
Diffusion of Water in Swollen Poly(vinyl alcohol) Membranes Studied by Molecular Dynamics Simulation
The diffusion of water in mixtures of water and poly(vinyl alcohol) (0-97%) has been investigated using atomistic molecular dynamics simulation. The dependence of the calculated diffusion coefficients on the polymer concentration follows the Mackie-Meares equation to a good approximation. It is found that the pattern of water diffusion undergoes a pronounced change with concentration and temper...
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Mixtures of water and poly(vinyl alcohol) (0-96%) have been investigated using molecular dynamics simulations with an atomistically detailed force field. The concentration and temperature (300 and 375 K) dependence of a number of dynamical processes has been studied: Water diffusion including its mechanism, water reorientation and its anisotropy, formation and destruction of hydrogen bonds, wat...
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This paper focuses on the effects of the addition of an ionic liquid, 1-Allyl-3-butylimidazilium bis(trifluoromethane sulfonyl)imide ([ABIM]TFSI), which has a high affinity for benzene, into the poly(vinyl chloride) (PVC) membrane on the pervaporation characteristics of the removal of benzene from aqueous solutions of dilute benzene. When aqueous solutions of 100～500 ppm benzene were permeated ...
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We appreciated the research by Derdeyn et al (1) from the Mallinckrodt Institute of Radiology concerning the size and suspension characteristics of polyvinyl alcohol (PVA) particles. We do agree that both size and suspension characteristics of PVA represent relevant parameters affecting the aggregation of particles during injection. In addition to these two variables, we considered further para...
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Diffusion of aqueous sodium dodecyl sulfate (SDS) across cross-linked polyacrylamide hydrogel membranes has been studied by electrical conductivity measurements. Initial rapid sorption of SDS (as unimer) into the membranes is observed. The effect of SDS concentration, and of cross-linker fraction on the degree of swelling of the gels is studied and associated with binding of the surfactant to t...
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ژورنال
عنوان ژورنال: FIBER
سال: 2000
ISSN: 0037-9875
DOI: 10.2115/fiber.56.290