Chemical Kinetics of Photo-induced Graft Copolymerization to Dithiocarbamated Polyvinyl Chloride

Abstract

Chemical kinetics of photo-induced graft copolymerization of methoxypolyethyleneglycol methacrylate (SM) and N, N-dimethylaminoethyl methacrylate (DAEM) to dithiocarbamated polyvinyl chloride (DTC-PVC) was studied.
The photo-graft copolymerization in a batch reactor was carried out and the concentration of SM, DAEM and graft polymer were followed experimentally. Quantum yield of photolysis of DTC group, kinetic parameters for polymerization of SM or DAEM, monomer reactivity ratio and φ factor for copolymerization of SM and DAEM were determined independently.
Simulation of the graft copolymerization process was performed by substituting those parameters into the equations of photo-graft copolymerization. The simulation well explained the experimental results, especially at low conversion.