Abstract
Semi-Interpenetrating polymer network materials (semi IPNs) have been synthesized from styrene-acrylonitrile-vinyl acetate terpolymer as polymer I and zinc acrylate as polymer II, using divinyl benzene as crosslinking agent for polymer II. The terpolymer was pre-synthesized by a radical polymerization method using AIBN as the radical initiator. The terpolymer has been characterized by IR and elemental analysis. The composition (Sty: AN:VAc) = (0.25:0.50:0.25), the intrinsic viscosity (0.16 dl/g), the softening temperature range (180–185 °C), the glass transition temperature (23 °C) and the thermal stability (up to 300 °C) of the terpolymer were determined. The IPN was characterized by determining its density (1.12 g/cc at 30 °C), molecular weight between crosslinks (Mc = 1469), thermal stability (~ 400 °C), glass transition temperature (41 °C, 78 °C) and two-phase morphology.
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