2-Propenamide, polymer with sodium ethenesulfonate Acrylamide-sodium vinylsulfonate copolymer Acrylamide-sodium vinylsulfonate polymer Acrylamide, polymer with sodium ethenesulfonate Ethenesulfonic acid, sodium salt (1:1), polymer with 2-propenamide Ethenesulfonic acid, sodium salt, polymer with 2-propenamide Ethenesulfonic acid, sodium salt, polymer with acrylamide