1982 Volume 1982 Issue 3 Pages 497-499
The copolymerization of sulfur dioxide with acrylic anhydride was carried out in N, N-dimethylformamide or dimethyl sulfoxide using AIBN as an initiator. Copolymer obtained was studied by IR-spectra and elemental analyses. The structure containing a closed ring unit, the SO2 unit in the main chain and a small amount of CH2. CH- group in the side chain was proposed. The thermogravimetry (TG) and the differential scanning calorimetry (DSC) were carried out on the copolymer sample in air. The melting point was not observed and DSC thermogram showed an endotherm at 170∼200°C.
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