2-Propenoic acid, polymer with sodium phosphinate 2-Propenoic acid-sodium phosphinate copolymer 71050-62-9 Acrylic acid, sodium hypophosphite polymer Acrylic acid-sodium hypophosphite copolymer Acrylic acid-sodium phosphinate copolymer Phosphinic acid, sodium salt, polymer with 2-propenoic acid Poly(acrylic acid-co-hypophosphite), sodium salt Poly(acrylic acid-co-sodium hypophosphite) Sodium hypophosphite-acrylic acid copolymer