Investigation of Partially Methylolated Polyacrylamide Guar Gum by FTIR and Thermal Properties

Cotton samples were modified with the reactive composite with different methylolation percentage varying from 20 to 80%. The Fourier transforms infrared (FTIR) spectra of modified cotton fabrics have followed at each condition which had been prepared via graft copolymerization of acryalmide and guar gum using the KBrO3/Thiourea redox system in the presence of ammonium chloride as catalyst. The thermal properties of the samples were analyzed using Thermo Gravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC) techniques. TGA tested results indicates that the thermal stability of modified cotton fabric with 40% methylolation got enhanced than the blank, the relative TGA results show that the char residue of cotton sample after 400ºC is higher than the blank one which means lesser volatile hazardous components. DSC measurement shows variation in the thermal behavior according to different methylolation percentage.