Characterization of polystyrene filled with HgS nanoparticles

摘要

A polystyrene (PS)-HgS nanocomposite has been synthesized by first preparing a copolymer of styrene and mercury-acrylamide (5 percent by weight) and further reaction of it with H_2S in chloroform solution. The effect of the HgS nanoparticles on the physical properties of the composite has been studied by differential scanning calorimetry (DSC) and thermogravimetric analysis (TGA). The glass transition temperature of the composite is 20 deg C higher than that of polystyrene. The thermal stability of the composite is higher than that of polystyrene as evidenced by the shift of onset temperature of degradation by 12 deg C as measured by TGA.