Characterization of polystyrene filled with HgS nanoparticles
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A polystyrene (PS)-HgS nanocomposite has been synthesized by first preparing a copolymer of styrene and mercury-acrylamide (5% by weight) and further reaction of it with H2S 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 degreesC 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 degreesC as measured by TGA. (C) 2003 Elsevier B.V. All rights reserved.