SEARCH Articles Figures Tables Acid copolymers Acids methacrylic acid Copolymer methacrylate Copolymers acidic Copolymers methacrylic Lignosulfonate Lignosulfonates Lignosulfonates/lignosulfonic acids , Lignosulfonic acids METHACRYLIC ACID COPOLYMER Methacrylic acid Methacrylic acid methacrylate Methacrylic acid-lignosulfonate