Superabsorbent nanocomposite (alginate-g-PAMPS/MMT): Synthesis, characterization and swelling behavior

► Superabsorbent was synthesized by initiator and crosslinking agent. ► FTIR confirms that graft copolymerization occurs between alginate, AMPS and MMT. ► TGA shows that superabsorbent is more thermally stable than pure polymer network. ► XRD shows that the copolymerization reaction is performed on the surface of MMT.