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Metathesis copolymerization of chlorine-containing acetylenes with NBE catalyzed by MoCl5-n-Bu4Sn

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Summary

In the copolymerizations of 1-chloro-1-octyne (ClOc) and 1-chloro-2-phenylacetylene (ClPA) with norbornene (NBE) by MoCl5-n-Bu4Sn in toluene at-20°C, both comonomers were consumed simultaneously. The GPC curves of the copolymerization products were unimodal and identical irrespective of the RI and UV (290 nm) detectors. The13C NMR spectra of the products exhibited the presence of cross-propagating sequences. From these results, it is concluded that the copolymerization products are copolymers and not mixtures of homopolymers. The monomer reactivity ratios were: rClOc=0.69, rNBE=6.4; rClPA=1.0, rNBE=3.1. The more electron-donating the ring substituent of CiPA, the more reactive the ClPA in copolymerization with NBE.

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Authors and Affiliations

  1. Department of Polymer Chemistry, Kyoto University, 606-01, Kyoto, Japan

    Takuya Ohgane, Toshio Masuda & Toshinobu Higashimura

Authors
  1. Takuya Ohgane
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  2. Toshio Masuda
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  3. Toshinobu Higashimura
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Ohgane, T., Masuda, T. & Higashimura, T. Metathesis copolymerization of chlorine-containing acetylenes with NBE catalyzed by MoCl5-n-Bu4Sn. Polymer Bulletin 32, 517–524 (1994). https://doi.org/10.1007/BF00973896

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  • DOI: https://doi.org/10.1007/BF00973896

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