FIELD: chemistry.
SUBSTANCE: invention refers to polymerisation techniques comprising diluents, including fluorohydrocarbons, and application thereof for production of new polymers essentially long-chain branching free. Produced is copolymer of isoolefine preferably of isobutylene, and that of multiolefine preferably of coupled diene, more preferably of isoprene essentially long-chain branching free. Copolymer has medium viscosity g1 exceeding or equal 0.978 as it is established with triple exclusion chromatography EXC.
EFFECT: improvement of rheological properties.
31 cl, 6 dwg, 25 tbl, 151 ex
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