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

Kentaro Yoshimura; Takeo Suga; Hiroyuki Nishide

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

Kentaro Yoshimura^*, Takeo Suga, Hiroyuki Nishide

^*Corresponding author for this work

School of Advanced Science and Engineering

Research output: Contribution to conference › Paper › peer-review

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 language	English
Number of pages	1
Publication status	Published - 2005 Dec 1
Event	54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: 2005 Sept 20 → 2005 Sept 22

Other

Other	54th SPSJ Symposium on Macromolecules
Country/Territory	Japan
City	Yamagata
Period	05/9/20 → 05/9/22

Keywords

Epoxide
Nitroxide radical
Radical polymer
Ring-opening polymerization
Secondary battery

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Ring-opening polymerization of proxyl-substituted epoxide derivatives and their redox property",

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.",

keywords = "Epoxide, Nitroxide radical, Radical polymer, Ring-opening polymerization, Secondary battery",

author = "Kentaro Yoshimura and Takeo Suga and Hiroyuki Nishide",

year = "2005",

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language = "English",

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TY - CONF

T1 - Ring-opening polymerization of proxyl-substituted epoxide derivatives and their redox property

AU - Yoshimura, Kentaro

AU - Suga, Takeo

AU - Nishide, Hiroyuki

PY - 2005/12/1

Y1 - 2005/12/1

N2 - 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.

AB - 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.

KW - Epoxide

KW - Nitroxide radical

KW - Radical polymer

KW - Ring-opening polymerization

KW - Secondary battery

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M3 - Paper

AN - SCOPUS:33645636110

T2 - 54th SPSJ Symposium on Macromolecules

Y2 - 20 September 2005 through 22 September 2005

ER -

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

Abstract

Other

Keywords

ASJC Scopus subject areas

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