Abstract
PMMA-Na2SO4 composite films were prepared by a solvent casting method and were characterized by SEM, EDX, DSC, UTM, TG/DTA and FTIR techniques. From the SEM it is clear that Na2SO4 were well dispersed, having sizes ranging from micrometer to nanometer. EDX results confirm the presence of Na2SO4 particles in a polymer matrix. UTM studies show that the tensile strength of PMMA-Na2SO4 composite is better than pure PMMA. FTIR spectra indicates the strong interaction between C=O of PMMA and Na2SO4. According to DSC, TG/DTA analysis the thermal stability and glass transition temperature of PMMA-Na2SO4 has increased as compared with that of pure PMMA.