Characterization of heterogeneous anion-exchange membrane

This paper reports the studies on the properties of heterogeneous anion-exc hange membranes prepared from polyvinyl chloride (PVC) as binder and anion- exchange resin powder. The effect of variation of ion-exchange resin partic le size as well as the resin-binder ratio on different mechanical, electroc hemical and morphological properties of the membranes have also been studie d. It has been found that by using resins of suitable particle size and loa ding, it is possible to achieve heterogeneous membranes which are comparabl e with interpolymer membranes in performance. Moreover, heterogeneous membr anes are found to have more dimensional stability than interpolymer membran es. (C) 2001 Elsevier Science B.V. All rights reserved.