FIELD: chemistry.
SUBSTANCE: peroxide-curable rubber compound contains a peroxide curing substance and a halobutyl ionomer with high content of multi-olefin. The halobutyl ionomer is obtained via polymerisation of a mixture of monomers containing 80-95 wt % isobutene monomer and 4-20 wt % isoprene monomer in the presence of AlCl3 and a source of protons and/or carbocationic compound or silyl cationic compound, capable of initiating polymerisation and 0.01-1.0 wt % multi-olefin cross-linking agent to obtain a butyl polymer with high content of multi-olefin, halogenation of the butyl polymer and reaction thereof with a phosphorus-based nucleophile.
EFFECT: invention enables to obtain a heat resistant peroxide-curable compound with a halobutyl ionomer with high content of multi-olefin and to obtain a moulded article from said compound without inorganic impurities.
13 cl, 2 tbl, 4 ex
