SYNTHESIS AND CHARACTERIZATION OF NOVEL XANTHAN GUM COPOLYMER BY USING ACRYLAMIDE

Abstract

In the present research a polyacrylamide grafted xanthan gum copolymer was synthesized by employing microwave- assisted grafting technique where potassium persulfate was used as a radical initiator. Effect of various critical parameters like concentrations of monomer, potassium persulfate and irradiation time in microwave on grafting were studied by evaluating different grafting completion indicators such as percent grafting (%G), percent grafting efficiency (%GE) and percent conversion (%C). Maximum values for all indicators obtained with the A9 batch containing 1000mg of monomer, 150mg of radical initiator within 2 minutes. The grafted xanthan gum copolymer which has been obtained by optimized batch was further characterized by using Fourier transforms infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) and Differential Scanning calorimetry (DSC) analysis.