抄録
Cation exchange membranes were prepared using styrene and divinylbenzene as respective components and polyvinyl chloride cloth and microporous polyethylene film as respective backing materials. The intramembrane structures of synthetic and commercial membranes were analyzed using Tye’s treatment by considering the non-homogeneous charge distribution within the membrane. Volume fractions of the pore, polyelectrolyte and inert polymer phases within the membrane were determined by using the water content of the membrane and the Donnan sorption concentration. The diffusion coefficients of the cupric ion within the pore and resin (i.e., polyelectrolyte and inert polymer) phases were correlated with the respective volume fractions of the membrane. A simplified model of the intramembrane structure was found to be useful for evaluating the sorbed concentration and the membrane conductivity.
