azanium,4-ethenylbenzenesulfonate;POLY(4-AMMONIUM STYRENESULFONIC ACID),30 W T. % SOLUTION IN WATER;poly(4-styrenesulfonic acid) ammonium salt solution;4-Ethenylbenzenesulfonic acid ammonium salt homopolymer;Poly(4-styrenesulfonic acid) solution ammonium salt;Benzenesulfonicacid,4-ethenyl-,ammoniumsalt,homopolymer;p-Styrenesulfonicacid,ammoniumsalt,homopolymer;POLYSTYRENE SULFONATE, AMMONIUM SALT