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Das Gautam,윤영수,Biplab Kr. Deka,이석희,박영빈 한국고분자학회 2015 Macromolecular Research Vol.23 No.3
Organic-inorganic heterogeneous hybrid anion conducting membranes were prepared by 1,4-diglycidylbutane ether (DGBE) aided chemical grafting of silica (SiO2) nanoparticles onto poly(vinyl alcohol) (PVA). Themembranes properties such as water uptake, thermo-mechanical attributes and ionic conductivity with respect toDGBE and SiO2 loadings were studied extensively. The membrane with composition of 15 wt% DGBE and 3 wt%of SiO2 enhances the tensile strength of PVA by 229%. The ionic conductivity of the membranes was observed tobe in the range of 10-4-10-3 Scm-1 under 100% relative humidity. A linear increase in the ionic conductivity with temperaturewas demonstrated by all the membranes. The PVA nanocomposites appeared to be a potential candidate forapplication in alkaline fuel cell.