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Cyclopentadienylation of polychloroprene

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Abstract

Polychloroprenes CR containing pendant cyclopentadiene Cp functions have been synthesized by treating the rubbers with dimethylcyclopentadienyl-aluminum Me2 CpAl. Optimum reaction conditions have been determined. Cyclopentadienylated polychloroprenes CR-Cp gelled on drying, however, the products became soluble upon treatment with strong dienophiles, e.g., maleic anhydride or dimethyl acetylenedicarboxylate. Evidently gelation is due to Diels-Alder addition of pendant Cp groups and may lead to thermally reversible networks.

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Author notes

  1. Béla Iván (Visiting scientist)

    Present address: Central Research Institute for Chemistry of the Hungarian Academy of Sciences, POB 17, 1525, Budapest, Hungary

Authors and Affiliations

  1. Institute of Polymer Science, University of Akron, 44325, Akron, Ohio, USA

    Béla Iván (Visiting scientist) & Joseph P. Kennedy

  2. Central Research Institute for Chemistry of the Hungarian Academy of Sciences, POB 17, 1525, Budapest, Hungary

    Tibor Kelen & Ferenc Tüdös

Authors
  1. Béla Iván
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  2. Joseph P. Kennedy
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  3. Tibor Kelen
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  4. Ferenc Tüdös
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Iván, B., Kennedy, J.P., Kelen, T. et al. Cyclopentadienylation of polychloroprene. Polymer Bulletin 3, 45–52 (1980). https://doi.org/10.1007/BF00263204

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  • DOI: https://doi.org/10.1007/BF00263204

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