作者: Heriberto Espinoza-Gómez , Lucía Z. Flores-López , Eduardo Rogel-Hernández , Manuel Martínez
DOI: 10.1590/S0103-50532009000700014
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摘要: Bipolar membranes (BMP) were prepared by bonding together separate anion and cation exchange membrane. For the preparation of selective layer, aqueous solution PVA [poly(vinyl alcohol)], PASA [poly(anetholesulfonic acid sodium salt)], where ratio PVA/PASA was changed for control membrane charge density, cast negatively charged membranes. These annealed at 100 oC 45 min cross-linked in an containing 10% Na2SO4, 1.5% H2SO4, 0.5% glutaraldehyde order to water content gel The layers dispersing a PDDAB [poly(diallyldiethylammonium bromide)] DMF, PVA/PDDAB density control. electrical resistance BMP formed this methodology slightly increased while selectivity decreased, their permselectivity did not change with or alkaline post-treatment.