Polymerization of acrylonitrile using Ce(IV) as initiator in the presence of hippuric acid in aqueous sulfuric acid solution catalyzed byN-cetyl trimethyl ammonium bromide (NCTAB) was studied kinetically. The polymerization experiment was carried out in the temperature range 35°-55°C. The rate of polymerization (Rp) increases with increasing concentration of NCTAB and it is found to be proportional to the concentration of acrylonitrile. Comparisons were made of the effect of different organic substrates and different miceiles on the rate of polymerization. Various effects such as effects of concentration of metal ion, ernulsi-fier, monomer, sulfuric acid, organic solvents, and inorganic salts onRpwere also investigated. The remarkable feature of the investigation involves the enhancement ofRpin the presence of micelles; a suitable mechanism for the derivation of the rate expression is proposed and optimum conditions are predicted. From the Arrhenius plot, the energy of activation (EA) was found to be 1.9805 kcal/mol.