Journal of Applied Polymer Science, Vol.66, No.11, 2081-2088, 1997
Polymerization of Methyl Acrylate Initiated by V(V)-Cyclohexanone Redox System in Micellar Phase
The kinetics of methyl acrylate (MA) polymerization initiated by a V(V)-Cyclohexanone redox system, in the presence of surfactant, over a temperature range of 30-50 degrees C in acidic medium are analyzed. The anionic surfactant (SDS) enhances the rate of polymerization (R-p) as well as the rate of V(V) consumption (-R-v). The cationic surfactant, cetyl trimethylammonium bromide (CTAB), decreases both the rates. The effect of variation of the concentration of supfactant, monomer, substrate, and acid have been examined. A suitable free radical mechanistic scheme has been proposed for the above process.
Keywords:MICRO-EMULSION SYSTEMS;BUTYL ACRYLATE;MICROEMULSION POLYMERIZATION;AQUEOUS POLYMERIZATION;VINYL MONOMERS;METHACRYLATE;KINETICS;SURFACTANTS;WATER;COPOLYMERIZATION