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The Effect of PAA on the Characterization of PVA/SSA ion Exchange Membranes  

임지원 (한남대학교 공과대학 화학공학과)
천세원 (한남대학교 공과대학 화학공학과)
홍상혁 (한남대학교 공과대학 화학공학과)
황호상 (한남대학교 공과대학 화학공학과)
정성일 (한남대학교 공과대학 화학공학과)
Publication Information
Membrane Journal / v.13, no.2, 2003 , pp. 118-124 More about this Journal
Abstract
The ion exchange membranes prepared from the reaction between poly(vinyl alcohol) (PVA) which is known as the good methanol barrier in pervaporation membrane processes and sulfo-succinic acid (SSA) was used as the basic membranes. In order to improve the ion exchange capacity, poly(acrylic acid) (PAA) was added to this ion exchange membranes. The methanol permeabilities, ion conductivities, water contents and ion exchange capacity were measured for the resulting membranes with varying PAA contents. In general, methanol permeability and ion conductivity of PVA/SSA/PAA membranes were less than those of PVA/SSA membranes due to the reduction of free volumes resulted from crosslinking. The vehicle mechanism could be more dominant than jump mechanism for membranes in question.
Keywords
poly (vinyl alcohol); sulfo-succinic acid; poly (acrylic acid); methanol permeability; ion conductivity; vehicle;
Citations & Related Records
Times Cited By KSCI : 8  (Citation Analysis)
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