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Hydroboration copolymerization

Synthesis of organoboron copolymers by the reactions of dienes or diene/diyne with thexylborane

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Summary

Organoboron copolymers were prepared by polyaddition of diene mixture or diene/diyne mixture, respectively, with thexylborane (1). When a mixture of dienes such as 1,2-diallyloxyethane (2a) and p-diallylbenzene (2b) was polymerized with 1, the peaks in GPC using both UV and RI detectors were shifted to higher molecular weight regions with the increase of the amount of 1. The molecular weight distribution of the copolymer obtained by this method indicated clear difference from that of a mixture of two homopolymers. On the other hand, when the poymerization between 1 and 1,7-octadiene (2c) was carried out in the presence of a trace amount of 1,7-octadiyne (4), the molecular weights of organoboron polymers were found to be increased when the ratio of 4/2c was increased.

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Author notes

  1. Yoshiki Chujo

    Present address: Department of Synthetic Chemistry, Faculty of Engineering, Kyoto University, Yoshida, Sakyo-ku, 606-01, Kyoto, Japan

  2. Ikuyoshi Tomita

    Present address: Research Laboratory of Resources Utilization, Tokyo Institute of Technology, Nagatsuda, Midori-ku, 227, Yokohama, Japan

  3. Takeo Saegusa

    Present address: KRI International, Inc., Kyoto Research Park, 17, Chudoji, Minami-machi, Shimogyo-ku, 600, Kyoto, Japan

Authors and Affiliations

  1. Department of Synthetic Chemistry, Faculty of Engineering, Kyoto University, Yoshida, Sakyo-ku, 606-01, Kyoto, Japan

    Ikuyoshi Tomita & Takeo Saegusa

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  1. Yoshiki Chujo
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  2. Ikuyoshi Tomita
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  3. Takeo Saegusa
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Chujo, Y., Tomita, I. & Saegusa, T. Hydroboration copolymerization. Polymer Bulletin 27, 375–382 (1992). https://doi.org/10.1007/BF00309692

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  • DOI: https://doi.org/10.1007/BF00309692

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