FIELD: rubber industry, chemical technology.
SUBSTANCE: invention relates to a method for synthesis of butyl rubber. Butyl rubber is synthesized by the copolymerization reaction of isobutylene and isoprene at decreased temperature in the presence of Friedel-Crafts catalyst in solvent medium to yield polymer followed by stabilizing polymer with antioxidant, degassing polymer and its drying wherein catalyst comprises a coupled diene. Method provides uniform distribution of catalyst in reaction zone, increasing run of polymerizing agent before stopping for washing out, enhancing quality of rubber by Mooney plasticity scattering index of polymer and the content of low-molecular fraction in polymer. Butyl rubber is designated for manufacturing rubber articles, in particular, car inner tubes, and invention can be used in petrochemical industry.
EFFECT: improved method of synthesis.
5 cl, 2 dwg, 1 tbl, 18 ex
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