POLYACRYLAMIDE BASED HYDROGELS: SYNTHESIS, CHARACTERIZATION AND APPLICATIONS

Hydrogels are polymeric networks those imbibe large quantity of water without dissolving themselves. Hydrogels contain water solubility groups such as –OH, -COOH, -NH2, -CONH2, andSO3H. Polyacrylamide hydrogel is widely used in ophthalmic operations, drug treatment, food packaging products, and water purification.This review describes the various methods of synthesis of polyacrylamide based hydrogel; characterization of polyacrylamide based hydrogel by D.S.C ,S.E.M, I.R; various properties of polyacrylamide based hydrogels like swelling, mechanical, rheological; and various application of polyacrylamide based hydrogel in drug delivery, heavy metal removal, medical fields and agricultural fields.