Redox polymerization kinetics of vinyl polymerization initiated by the v^{5 +}/cyclohexanone system in aqueous sulphuric acid

Abstract

Abstract Kinetics of the vinyl polymerization of acrylonitrile initiated by the redox system cyclohexanone/V 5 + were investigated in aqueous sulphuric acid in the temperature range of 35—50°C and the rates of polymerization and of V 5 + disappearance etc. were measured. From the result it was concluded that the polymerization reaction is initiated by an organic free radical arising from the V 5 + ‐cyclohexanone reaction and terminated by V 5 + ions. A suitable kinetic scheme was proposed and the various rate and energy parameters were evaluated.