Polymerization of acetylenes bearing proxyl radical and their redox property

Shinji Kasatori, Takeo Suga, Hiroyuki Nishide

Research output: Contribution to conferencePaper

Abstract

A nitroxide radical is stable at ambient conditions and has two redox couples; nitroxide radical is oxidized to oxoammonium cation (p-type doping) and reduced to aminoxyl anion (n-type doping). Based on these electrochemical properties, the nitroxide radical is expected as an electrode active material of secondary battery. In this report, we synthesized new polyacetylene derivatives bearing 2,2,5,5-tetramethylpyrrolidine-N-oxyl(proxyl radical) and studied their electrochemical properties. Two monomers were synthesized by Grignard reaction (from nitrone). The obtained acetylene monomer was polymerized by coordination polymerization and oxidized to its radical derivative. Poly(proxyl radical)s were identified by IR, ESR, SQUID measurement, and elemental analysis. Redox property of these poly(proxyl radical)s was examined by cyclic voltammetry.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005 Dec 1
Event54th SPSJ Annual Meeting 2005 - Yokohama, Japan
Duration: 2005 May 252005 May 27

Conference

Conference54th SPSJ Annual Meeting 2005
CountryJapan
CityYokohama
Period05/5/2505/5/27

Keywords

  • Coordination polymerization
  • Nitroxide
  • Polyradical
  • Redox property

ASJC Scopus subject areas

  • Engineering(all)

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    Kasatori, S., Suga, T., & Nishide, H. (2005). Polymerization of acetylenes bearing proxyl radical and their redox property. Paper presented at 54th SPSJ Annual Meeting 2005, Yokohama, Japan.