Cationic polymerization, olefins

Kennedy, J. P. and Trivedi, P. D. Cationic Olefin Polymerization Using Alkyl Halide — Alkyl-Aluminium Initiator Systems. I. Reactivity Studies. II. Molecular Weight Studies. Vol. 28, pp. 83-151. [Pg.155]

Cationic Olefin Polymerization Using Alkyl Halide Alkylaluminum Initiator Systems... [Pg.83]

The purpose of this study was to investigate the mechanism of cationic olefin polymerizations by model experiments using alkyl-aluminum/alkyl halide initiator systems and to correlate the results of model experiments with corresponding polymerization reactions. [Pg.2]

The relative rates of chain transfer to monomer (briefly transfer), termination and propagation, determine molecular weights and ultimate conversions in most cationic olefin polymerizations. The corresponding model reactions are proton elimination, alkylation by the counteranion and formation of Cfg and higher fractions. Thus, a quantitative analysis of [Cfa]. [C13 or C14] and [Cj ] could give clues as to the relative rates of these competing reactions. The following equations further illustrate the concept ... [Pg.29]

Product distribution analysis confirms the earlier proposed mechanism of cationic olefin polymerizations using alkylaluminum-alkyl halide systems. [Pg.37]

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