| abstract |
Highly branched polyisoolefines are produced according to the invention by the polymerisation of isoolefines in a single-stage process, in solution, suspension or in the gas phase in the presence of bifunctional monomers which contain at least one group capable of cationic polymerisation and at least one group which serves as an initiator for the cationic polymerisation of isoolefines (inimer), at temperatures from +20 to -100°C, optionally in the presence of inert, organic solvents, and in the presence of alkylalumoxanes (coinitiator). |