Facile grafting-onto-preparation of block copolymers of TEMPO and glycidyl methacrylates on an oxide substrate as an electrode-active layer

Katsuyuki Takahashi, Konstantine Korolev, Kazumasa Tsuji, Kenichi Oyaizu, Hiroyuki Nishide, Evgeny Bryuzgin, Alexander Navrotskiy, Ivan Novakov

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    15 Citations (Scopus)

    Abstract

    Block copolymers of 2,2,6,6-tetramethyl-4-piperidyl methacrylate and glycidyl methacrylate were prepared by atom transfer radical polymerization. The block copolymer was immobilized on an indium-doped tin oxide substrate by simply coating the copolymer solution and annealing. The copolymer layers were efficiently converted to those of the corresponding 2,2,6,6-tetramethylpiperidin-1-oxy (TEMPO) polymer. The TEMPO layers were swelled with but not eluted into common electrolyte solutions such as acetonitrile and ethylene carbonate, and showed excellent electrochemically reversible redox cycling at 0.81 V vs. Ag/AgCl. The layer with the thickness of micron meters exhibited both a sufficient charge diffusivity (10<sup>-10</sup> cm<sup>2</sup> s<sup>-1</sup>) and a very large storage capacity (beyond 120 mC cm<sup>-2</sup>), which was applicable to a cathode of organic-based rechargeable devices.

    Original languageEnglish
    Pages (from-to)310-314
    Number of pages5
    JournalPolymer (United Kingdom)
    Volume68
    DOIs
    Publication statusPublished - 2015 Jun 18

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    Keywords

    • Block copolymer
    • Cathode-active material
    • Glycidyl methacrylate

    ASJC Scopus subject areas

    • Organic Chemistry
    • Polymers and Plastics

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