FIELD: chemistry.
SUBSTANCE: present invention relates to the technology of obtaining rubber, particularly to hydrogenated or non-hydrogenated nitrile rubber, to the method of obtaining it, to a polymer composite material, to the method of obtaining it and method of making moulded objects. Hydrogenated or non-hydrogenated rubber is obtained, with molecular weight Mw between 20000 and 250000, Mooney viscosity -ML 1+4 at 100°C between 1 and 50 and polydispersity index of not more than 2.5. The polymer composite material contains not less than one hydrogenated or non-hydrogenated nitrile rubber, not less than one filler and not less than one crosslinking agent. Without adding coolefin, the nitrile rubber is subjected to metathesis in the presence of Grubbs's catalyst in an inert solvent.
EFFECT: obtaining hydrogenated or non-hydrogenated nitrile rubber with low molecular weight and narrower molecular weight distribution.
13 cl, 4 tbl, 4 ex
