Studies on ion-exchange membranes.

Poly(styrene-co-maleic acid) (PSMA) with varying acid content were prepared by free radical polymerization. Hydroxamic acid derivative (PSMH) was prepared by the acid chloride route • • The polyelectrolytes were characterized by infrared spectroscopy, acid content and viscosity average molecular weight. The effect of pH and added electrolytes on the viscosity of the polymer ~olutions are discussed.