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Living polymerization of methyl methacrylate by novel samarium-based trifunctional initiator

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Summary

A novel trifunctional samarium enolate, prepared in situ by the reduction of 1,3,5-tris(2-bromoisobutyroyloxymethyl)benzene with SmI2, has proven to initiate the polymerization of methyl methacrylate (MMA). Characterization of the polymer by 1H NMR and GPC clearly supported the formation of a star-shaped tri-armed poly(MMA). The resulting star-shaped poly(MMA) possessed narrow molecular weight distribution, and its molecular weight agreed well with the theoretical value, which reveals the quantitative initiation efficiency.

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Authors and Affiliations

  1. Chemical Resources Laboratory, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 226-8503, Japan, , , , , , JP

    Mamiko Narita & Takeshi Endo

  2. Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 606-8501, Japan, , , , , , JP

    Ryoji Nomurat

  3. Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Yokohama 226-8502, Japan, , , , , , JP

    Ikuyoshi Tomita

Authors
  1. Mamiko Narita
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  2. Ryoji Nomurat
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  3. Ikuyoshi Tomita
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  4. Takeshi Endo
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Additional information

Received: 6 July 2000/Revised version: 25 August 2000/Accepted: 29 August 2000

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Narita, M., Nomurat, R., Tomita, I. et al. Living polymerization of methyl methacrylate by novel samarium-based trifunctional initiator. Polymer Bulletin 45, 231–236 (2000). https://doi.org/10.1007/s002890070025

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  • DOI: https://doi.org/10.1007/s002890070025

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