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Recent Trends in Hydrogels Based on Starchgraft-Acrylic Acid: A Review

Vilas D. Athawale, Vidyagauri V. Lele

Abstract

This paper presents a reviewal profile of water absorbing resins based on graft copolymers of acrylic acid 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 absorbing capacity of these hydrogels. It describes the exact experimental conditions for producing hydrogels based on gelatinised maize starch grafted with acrylic acid showing maximum water absorption of 260 g/g.

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Key concepts: Self-healing hydrogels, Acrylic acid, Starch, Absorption of water, Copolymer, Chemical engineering, Water soluble, Absorption (acoustics)