FIELD: chemistry.
SUBSTANCE: invention relates to method of obtaining homopolymers of α-olefins, in particular polyisobutylene, and copolymers of α-olefins, for example, isobutylene, 1- butene, 1-hexene, 1-octene, 1-decene, α-methyl-styrene, with dienes, for example, butadiene, isoprene, or other hydrocarbon, which contains at least one system of conjugated double carbon-carbon bonds, in presence of initiating systems. Method of obtaining poly-α-olefins or copolymers of α-olefins with dienes includes polymerisation of α-olefin or its copolymerisation with diene in medium of α-olefin monomer or hydrocarbon solvent in presence of initiating system, which includes ionic liquid and compound, which is Lewis acid. Method is characterised by the fact that quantity of added initiating system without accounting optional solvent constitutes from 0.001 to 1 g per 1 kg of initial α-olefin monomer.
EFFECT: reduction of amount of ionic liquid applied in polymerisation, which results in absence of necessity to extract it from obtained polymers and carry out the following regeneration.
8 cl, 1 tbl, 7 ex
