Synthesis and Characterization of a Smart Super Absorbent Hydrogel

Abstract

This research work aims to give an overview of the synthesis of a smart super absorbent semi interpenetrating hydrogel and their characterizations. The main objective is to mix polyacrylamide with Tamarind gum and to check how the parameters are varying to create a good strength sustained delivery system. We tried to optimize the process parameters of polyacrylamide and tamarind gum semi interpenetrating hydrogel. Swelling measurements were done and mechanical properties were investigated. Cyclic compression, creep & stress relaxation properties are observed. XRD and FTIR studies were analyzed, Biocompatibility is checked and cross linking density is calculated. Tamarind gum converted the polyacrylamide into a super absorbent. With the increasing concentration of tamarind gum, cross-link density increases. Addition of Tamarind gum increased the swelling capability of polyacrylamide gel and increased its pH sensitivity. From the mechanical test data, we can conclude that with increasing concentration of tamarind gum viscoelastic property is increased. From the XRD pattern, it is seen that the composite is highly amorphous. From the FTIR analysis, we can say that all the components used for making the composite are present. With the increasing concentration of tamarind gum, biocompatibility of the hydrogel increases