Kinetics of the free radical polymerization of dimethyl diallyl ammonium chloride, 5. Kinetic model with persulfate as initiator

Abstract

Abstract The polymerization of dimethyl diallyl ammonium chloride in concentrated aqueous solution with persulfate as an initiator can be described up to high conversion by a kinetic model including formation of primary radicals by activated initiator decomposition as well as by redox reaction of S 2 O 8 2− and Cl − , chain propagation via monomer cation associates and termination by combination of cyclized polymer radicals between each other or with chlorine atoms. A kinetic expression for the rate of polymerization is presented; rate constants and model parameters have been determined.