Synthesis of graft copolymer (CgOH-g-AGA): Physicochemical properties, characterization and application

► A graft copolymer of κ-carrageenan and 2-acrylamidoglycolic acid (CgOH-g-AGA) was synthesized via free radical polymerization. ► Study of physicochemical properties in terms of swelling, metal ion uptake and flocculation behaviour. ► The synthesized graft copolymer can be used as superabsorbent, flocculants and exploited well industrially.