Ring-opening polymerization of proxyl-substituted epoxide derivatives and their redox property

Kentaro Yoshimura, Takeo Suga, Hiroyuki Nishide

Research output: Contribution to conferencePaper

Abstract

Nitroxide radical electrochemically can be oxidized to oxoammonium cation(p-type doping) and reduced reversively. Based on these redox properties, we have reported the application of nitroxide radical to an electrode-active material. In this report, we synthesized polyethyleneoxide derivatives bearing 2,2,5,5-tetramethylpirrolidine-N-oxyl(proxyl radical) and studied their redox properties. 2,2,5-trimethyl-5-oxiranylmethylpyrrolidin-1-yloxy was synthesized from 2-nitropropane via four step reactions. The obtained proxyl-substituted epoxide was polymerized by ring-opening polymerization. Poly(proxyl radical)s were identified by IR, ESR, SQUID measurement, and elemental analysis. Redox properties of these polyradicals were examined by cyclic voltammetry. The formal potential was 0.75V.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005 Dec 1
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: 2005 Sep 202005 Sep 22

Other

Other54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period05/9/2005/9/22

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Keywords

  • Epoxide
  • Nitroxide radical
  • Radical polymer
  • Ring-opening polymerization
  • Secondary battery

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Yoshimura, K., Suga, T., & Nishide, H. (2005). Ring-opening polymerization of proxyl-substituted epoxide derivatives and their redox property. Paper presented at 54th SPSJ Symposium on Macromolecules, Yamagata, Japan.