(E)-2-cyanoethenyl]azanium,prop-2-enoicaci;AMMONIUM ACRYLATES/ACRYLONITROGENS COPOLYMER;[(E)-2-cyanoethenyl]azanium,prop-2-enoic acid;2-Propenoic acid,polymer with 2-propenenitrile,ammonium salt;2-propenoic acid, polymer with 2-propenenitrile,ammonium salt;2-Propenoic acid, polymer with 2-propenenitrile, ammonium salt