Recent trends in hydrogels based on starch-graft-acrylic acid: A review

This paper presents a reviewal profile of water absorbing resins based on g raft copolymers of acrylic add and gelatinised starch. It first elaborates on the synthesis of these hydrogels, use of these hydrogels in a variety of commercial applications, and the role of hydrogen bonding in the water abs orbing capacity of these hydrogels. It describes the exact experimental con ditions for producing hydrogels based on gelatinised maize starch grafted w ith acrylic acid showing maximum water absorption of 260 g/g.