FIELD: chemistry of polymers, chemical technology.
SUBSTANCE: invention relates to radiation method for preparing grafted copolymers from material based on olefin polymer. Method involves carrying out the following stages in non-oxidizing atmosphere: (1) irradiation of material particles based on olefin polymer by high-energetic ionizing radiation; (2) treatment of prepared material based on olefin polymer with at least one grafting vinyl monomer that is able to form side chains on material based on olefin polymer in the presence of at least one additive regulating the molecular mass of side chains of polymerizing grafting vinyl monomer, and (3) deactivation of residual free radicals in prepared material based on olefin polymer subjected for grafting and removing unreacted vinyl monomer from the material. Additive regulating the molecular mass of side chains of polymerizing grafting vinyl monomer is chosen from: (a) at least one polymerization inhibitor based on halogen-substituted aliphatic or aromatic compound or aliphatic or aromatic derivative of phosphine. Prepared grafted polymers with low-molecular chains possess improved morphology of internal regions and surface and alleviated processing without negative effect on aggregate of physical properties of the grafted copolymer.
EFFECT: improved preparing method.
10 cl, 4 tbl, 4 ex
