Functional Star Polymers <i>via</i> Living Radical Polymerization—Designer Functional Nanospaces

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  • TERASHIMA Takaya
    Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University

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Other Title
  • リビングラジカル重合による機能性星型ポリマー—ナノ機能空間の構築
  • リビングラジカル重合による機能性星型ポリマー : ナノ機能空間の構築
  • リビングラジカル ジュウゴウ ニ ヨル キノウセイ ホシガタ ポリマー : ナノ キノウ クウカン ノ コウチク
  • Functional Star Polymers via Living Radical Polymerization^|^mdash;Designer Functional Nanospaces

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Abstract

This comprehensive article summarizes our recent efforts to design functional star polymers via living radical polymerization as functional nanospaces for catalysis and molecular recognition. Metal-bearing star polymer catalysts are efficiently obtained from the ruthenium-mediated linking reaction of arm polymers in the presence of a ligand monomer. Star polymer catalysts (nanoreactors) were effective for oxidation of sec-alcohols, (asymmetric) hydrogenation of ketones, and living radical polymerization, performing activity, stability, functionality-tolerance, and practicability (catalyst recycle, easy product recovery) higher than conventional polymer catalysts and analogues of in-core metal complexes. Core-functionalized star polymer nanocapsules selectively capture and stimuli-responsively release functional molecules. The key is to condense functional groups such as poly(ethylene glycol) (PEG), perfluoroalkane, and quaternary ammonium groups into the cores. Single-chain star polymers are created as a new class of star polymers via the self-folding of amphiphilic random copolymers with intramolecular hydrophobic interaction in water.

Journal

  • KOBUNSHI RONBUNSHU

    KOBUNSHI RONBUNSHU 70 (8), 432-448, 2013

    The Society of Polymer Science, Japan

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