Kinetics of radiation graft polymerization of styrene on poly(ethylene terephthalate) nuclear membranes

A study was made on the process of radiation graft polymerization of styrene on polyethylene terephthalate (PETP) nuclear membranes, using methods of preliminary irradiation in the air and in vacuum. Kinetic equations for processing curves of accumulation and the dependence of relative content of graft polymer on the time of PETP holding after irradiation are suggested. Ratios of rate constants of growth and chain breaking for membranes with different parameters were obtained. Conclusion about possible nature of active centers, initiating graft polymerization of styrene during preirradiation of PETP in the air, was made