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Catalytic polymerization of olefins

13. Polymerization of isobutylene in the presence of some silicagel samples

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Summary

  1. 1.

    Investigation of the catalytic activity of different types of silicagels in polymerization of isobutylene at 190° and atmospheric pressure showed that fine types (ASM, KSM and particularly ShSM) and, to a lesser extent, only one coarse silicagel (KSK) are active.

  2. 2.

    Polymerization products obtained in the presence of samples KSK and ASM are mainly 2, 4, 4-trimethylpentene-1 (to 45%), 2, 4, 4-trimethylpentene-2 (10%) and trimers (15– 25%). Polymerization on the remaining types of silicagels studied was accompanied by skeletal isomerization and formation of non-integral polymers (C5– C7 hydrocarbons).

  3. 3.

    The optimum reaction temperature (in the interval from 100 to 500°) was 190°.

  4. 4.

    Only sample KSK, among the silicagels studied, is regenerated by treatment with air at 300°.

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Authors and Affiliations

  1. N. D. Zelinskii Institute of Organic Chemistry, Academy of Sciences, USSR

    Ya. T. Éidus & B. K. Nefedov

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  1. Ya. T. Éidus
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  2. B. K. Nefedov
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Éidus, Y.T., Nefedov, B.K. Catalytic polymerization of olefins. Russ Chem Bull 10, 825–830 (1961). https://doi.org/10.1007/BF00905955

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  • DOI: https://doi.org/10.1007/BF00905955

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