Cationic polymerization of hydrocarbon monomers under the effect of complexes of acyl halides with Lewis acids |
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| Authors: | A. I. Nesmelov A. V. Orlinkov V. B. Murachev I. S. Akhrem V. S. Byrikhin M. E. Vol'pin |
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| Affiliation: | 1. A. N. Nesmeyanov Institute of Organoelemental Chemistry, Academy of Sciences of the USSR, Moscow
2. M. V. Lomonosov Institute of Precision Chemical Technology, Moscow
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| Abstract: | | 1. | The complexes AcBr·AlBr3 and AcBr·2AlBr3 initiate cationic polymerization of isobutylene in hydrocarbon medium at –78°C and the complex AcBr·2AlBr3 is more active. | | 2. | Initiation of polymerization under the effect of the AcBr·2AlBr3 complex in hexane at –78°C takes place exclusively with Ac+ and the initiating capacity of the AcBr·AlBr3 complex is due to generation of a proton in the reaction of this complex with the monomer. | | 3. | Under the effect of AcBr·AlBr3 and AcBr·2AlBr3 complexes, chain breaking takes place with the formation of the same C-Br and C=C terminal groups with similar ratios equal to  2 1. |
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 10, pp. 2232–2238, October, 1988. |
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