Abstract
The influence of solvation processes on the mechanism of polymerization of isobutylene in the presence of catalytic systems based on aluminium halides is reviewed. Polymerization of isobutylene on exposure to aluminium bromide complexes with halogen anhydrides of organic acids is explored in detail. It is shown that the mechanism of initiation and the rate of the chain limitation reactions depend on the nature of the halogen anhydride and the ratio of the components of the complex. It is concluded that in “quasi-living” processes there is solvation of the active centre of polymerization by the aluminium bromide complexes, while solvation of the anion by the free aluminium halide promotes the chain propagation limitation reaction.
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