Cyclopentadienylation of polychloroprene |
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| Authors: | Béla Iván Joseph P Kennedy Tibor Kelen Ferenc Tüdös |
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| Affiliation: | (1) Institute of Polymer Science, University of Akron, 44325 Akron, Ohio, USA;(2) Present address: Central Research Institute for Chemistry of the Hungarian Academy of Sciences, POB 17, 1525 Budapest, Hungary |
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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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