KINETICS OF THE FREE-RADICAL POLYMERIZATION OF DIMETHYL DIALLYL AMMONIUM-CHLORIDE, .5. KINETIC-MODEL WITH PERSULFATE AS INITIATOR

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 a) formation of primary radicals by activated initiator decomposition as well as by redox reaction of S2O82- and Cl-, b) chain propagation via monomer cation associates and c) 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.