SEARCH Articles Figures Tables Divinylbenzene Divinylbenzene sulfonation Divinylbenzene-cross-linked polystyrene sulfonated Divinylbenzenes Polystyrene sulfonate Polystyrene sulfonation Polystyrene/divinylbenzene Sulfonated polystyrene Sulfonated polystyrene-divinylbenzene copolymer membranes