Abstract
Homopolymerization of acrylonitrile, initiated by p-nitrophenacyldimethyl sulfonium ylide has been studied at 40° under inert atmosphere using dilatometric technique. The radical polymerization of acrylonitrile follows non-ideal kinetics, since the monomer and initiator exponent values are found to be 1.1 and 0.39, respectively. The polymerization is retrarded by hydroquinone. The overall activation energy is calculated to be 44 kJ mol - 1 . Kinetic data indicate that the polymerization involves free radical mechanism.
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