Kinetics of Polymerization of Acrylamide initiated by p-Nitrophenyl Carbethoxy Azomethylen Triphenyl Phosphorane

Abstract

Initiation of the polymerization of acrylamide (AM) by p-Nitrophenyl carbethoxy azomethylene triphenyl phospherane (p-NPCATP) in tetrahydrofuran-acetic-acid solution (1 : 9) has been studied kinetically at 65ºC using dilatometric technique. Initiator and the monomer exponent values were 0.6 and 0.9 respectively. Energy of activation was 38.32 KJ mol^–1 and the value at k_p²/k_t was found to be 1.9 x 10^–1 L mol^–1 S^–1. Polymerization was inhibited in the presence of hydroquinone. The results are explained in terms of radical mode of polymerization with bimolecular mode of termination.