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Ethylene polymerization initiated by metallocene catalysts (C5H5)4Mt-MAO (Mt = Ti, Zr) in the presence of organometallic modifiers

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Abstract

The effect of various organometallic compounds (Me3Al, Et3Al, i-Bu 3Al, Et2Zn, Me4Sn, Et4Pb) on the activity and productivity of catalytic systems based on (C5H5)4Zr and (C5H5)4Ti and the molecular- mass characteristics of polymers is investigated. The effect of additives on the activity of catalysts; on the shape of kinetic curves of polymerization; and on the molec ular mass, molecular-mass distribution, and poly- dispersity of the resulting polymers is associated with reversible chain transfer to the organometallic compounds.

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Authors and Affiliations

  1. Institute of Problems of Chemical Physics, Russian Academy of Sciences, pr. Akademika Semenova 1, Chernogolovka, Moscow oblast, 142432, Russia

    I. V. Sedov, P. E. Matkovskiy, L. N. Russiyan, V. P. Bozhok & E. O. Perepelitsina

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  1. I. V. Sedov
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  2. P. E. Matkovskiy
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  3. L. N. Russiyan
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  4. V. P. Bozhok
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  5. E. O. Perepelitsina
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Correspondence to I. V. Sedov.

Additional information

This work was supported by the Russian Foundation for Basic Research (project no. 08-03-0 0089) and program no. 1 of Basic Research of the Division of Chemistry and Materials Sciences, Russian Academy of Sciences.

Original Russian Text © I.V. Sedov, P.E. Matkovskiy, L.N. Russiyan, V.P. Bozhok, E.O. Perepelitsina, 2010, published in Russian in Vysokomolekulyarnye Soedineniya, Ser. B, 2010, Vol. 52, No. 2, pp. 309–313.

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Sedov, I.V., Matkovskiy, P.E., Russiyan, L.N. et al. Ethylene polymerization initiated by metallocene catalysts (C5H5)4Mt-MAO (Mt = Ti, Zr) in the presence of organometallic modifiers. Polym. Sci. Ser. B 52, 63–66 (2010). https://doi.org/10.1134/S1560090410010094

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  • DOI: https://doi.org/10.1134/S1560090410010094

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