METHOD OF PRODUCING HIGHLY REACTIVE ISOBUTENE HOMOPOLYMERS OR COPOLYMERS

摘要

FIELD: chemistry.SUBSTANCE: invention relates to production of highly reactive isobutene homopolymers and copolymers with content of terminal vinylidene double bonds at the end of polyisobutene chains of not less than 50 mol% with respect to separate ends of the chains of polyisobutene macromolecules. An isobutene or isobutene-containing monomer mixture is polymerised in the presence of an active catalyst. The polymerisation catalyst used is a complex of an aluminium trihalide and a donor or a complex of an alkylaluminium halide and a donor. The donor is an organic compound with not less than one ether functional group or a carboxylic ester functional group. Described are isobutene polymers of general formula Iand formula IIEFFECT: obtaining highly reactive isobutene homopolymers or copolymers with a narrow molecular weight distribution.14 cl, 30 ex