Radiation grafting of vinylalkoxysilanes onto polypropylene

The process of radiation grafting of vinylalkoxysilanes, monomers inactive in free-radical polymerization, onto PP was studied. The effects of the che mical structure of vinylalkoxysilanes and their sorption-diffusion characte ristics, as well as irradiation parameters on the efficiency of radiation g rafting were assessed. Based on the data obtained, the experimental conditi ons which make it possible to exclude the diffusion control of the process were determined. It was shown that the hydrolysis of alkoxy groups of vinyl silanes radiation-grafted onto PP provides a means of obtaining structured PP with a desired content of gel fraction.