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Kinetic treatment for the photodimerization reaction of modified natural polyisoprenes

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Summary

Natural polyisoprenes modified by the introduction of cinnamoyl groups have been obtained as films. In these polymers, aliphatic-(CH2)n- spacers of different lengths separate the main chain from the photosensitive group. Density measurements have been carried out, and the kinetic treatment of the photodimerization reaction is described. The relation between Tg and kobs to the size of the aliphatic spacer suggests that, at least for n=2 to 6, other factors may be affecting the reactivity of the cinnamoyl group.

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Authors and Affiliations

  1. Instituto de Macromoleculas, Universidade Federal do Rio de Janeiro, P.O. Box 68525, 20000, Rio de Janeiro, Brazil

    Leila L. Y. Visconte & Cristina T. Andrade

  2. The University of Air, Wakaba, 2-11, 260, Chiba, Japan

    Chiaki Azuma

Authors
  1. Leila L. Y. Visconte
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  2. Cristina T. Andrade
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  3. Chiaki Azuma
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Visconte, L.L.Y., Andrade, C.T. & Azuma, C. Kinetic treatment for the photodimerization reaction of modified natural polyisoprenes. Polymer Bulletin 26, 637–641 (1991). https://doi.org/10.1007/BF00313218

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  • DOI: https://doi.org/10.1007/BF00313218

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