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Studies on the Addition of the Hydroquinonesulfonic Acid to Poly(vinyl alcohol)/poly(acrylic acid-co-maleic acid) Membranes to Improve the Ion Conductivity for Fuel Cell Applications  

임지원 (한남대학교 공과대학 화학공학과)
황호상 (한남대학교 공과대학 화학공학과)
Publication Information
Membrane Journal / v.14, no.1, 2004 , pp. 44-52 More about this Journal
Abstract
This paper concerns the development of a cationic polymeric membranes for direct methanol fuel cell. The crosslinked poly(vinyl alcohol) (PVA) membranes with poly(acrylic acid-co-maleic acid) (PAM) and hydroquinonesulfonic acid (HQSA) as the crosslinking agents were prepared according to the amount of crosslinking agents. The resulting membranes were characterized in terms of methanol permeability, proton conductivity, water content and ion exchange capacity. The methanol permeability and proton conductivity increased with increasing PAM content up to 9 wt% and then decreased. This trend is considered the effect of the cross linking rather than the introduction of hydrophilic groups. When the HQSA contents were varied, no interesting increases of proton conductivity, water content and ion exchange capacity were found.
Keywords
poly(vinyl alcohol); poly(acrylic acid-co-maleic acid); hydroquinonesulfonic acid; methanol permeability; proton conductivity;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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