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Synthesis of highly ion conductive polyether/salt hybrids and their evaluation as an electrochemical reaction matrix

Research Project

Project/Area Number 09650986
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 高分子構造・物性(含繊維)
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

OHNO Hiroyuki  Tokyo University of Agriculture and Technology Department of Technology Professor, 工学部, 教授 (00176968)

Project Period (FY) 1997 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 1998: ¥1,100,000 (Direct Cost: ¥1,100,000)
Fiscal Year 1997: ¥2,100,000 (Direct Cost: ¥2,100,000)
KeywordsPolyether / Ion conductive polymers / Heme-Proteins / 高分子 / アモルファス / イオン伝導体
Research Abstract

A series of polyether/salt hybrids was synthesized to develop new type polymeric ion conductor. The ionic conductivity of the obtained hybrids was evaluated and the structure-conductivity relationship was applied to design more conductive polymer matrix. Sulfonimide group was found to be better salt end group, and the ionic conductivity of the hybrid having sulfonamide group was further improved by the addition of low-molecular-weight sulfonimide salt.
Molten salt formation was revealed to be effective to improve the ionic conductivity of the hybrids. This was successfully applied to design novel molten salt-type polymeric ion conductors.
The electrochemical redox reaction of heme-proteins was analyzed in ion conductive polyethers. They were thermally stable and showed quasi-reversible redox reaction at even 130゚C.Surface modification of electrodes with polyethers inhibited the adsorption of heme-proteins and successive denaturation. There was a certain chain length dependence of polyethers for monolayers on the electrode on the electrochemical redox reaction of heme-proteins in polyethers. Thicker monolayer was effective to suppress the denaturation of proteins but is less effective for the electron transfer. Effective electron transfer to proteins was achieved under suitable conditions of some characteristics of polyethers.

Report

(3 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • Research Products

    (21 results)

All Other

All Publications (21 results)

  • [Publications] H.Ohno and K.Kato,: "Electron transfer reaction of cytochrome c at poly(ethylene oxide)-thiolate-modified gold electrode" Chem.Lett.,. 407-408 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Ohno and K.Ito,: "Room-temperature molten salt polymers as a matrix for fast ion conduction" Chem.Lett.,. 751-752 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Tominaga and H.Ohno,: "Improved ionic conductivity of PEO/sulfonamide lithium salt hybrid by the addition of LiTFSI" Chem.Lett.,. 955-956 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] K.Muneyasu, N.Y.Kawahara, and H.Ohno,: "Electron transfer reaction of myoglobin containing DNA-modified hemin in PEO" Solid State Ionics,. 113・115. 167-171 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] F.Kurusu and H.Ohno,: "Electrochemical responce of glutaraldehyde-cross-linked cytochrome c in PEO" Solid State Ionics,. 113・115. 173-177 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Nakai, K.Ito, and H.Ohno,: "Ion conduction in molten salts prepared by terminal-charged PEO derivatives." Solid State Ionics,. 113・115. 199-204 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Ohno and K.Kato: "Electron transfer reaction of cytochrome c at poly (ethylene oxide)-thiolate-modified gold electrode" Chem.Lett.407-8 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Ohno and K.Ito: "Room-temperature molten salt polymers as a matrix for fast ion conduction" Chem.Lett.751-752 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Tominaga and H.Ohno: "Improved ionic conductivity of PEO/sulfonamide lithium salt hybrid by the addition of LiTFSI" Chem.Lett.955-956 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] K.Muneyasu, N.Y.Kawahara, and H.Ohno: "Electron transfer reaction of myoglobin containing DNA-modified hemin in PEO oligomers" Solid State Ionics. 113-115. 167-171 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] F.Kurusu and H.Ohno: "Electrochemical responce of glutaraldehyde-cross-linked cytochrome c in PEO oligomers" Solid State Ionics. 113-115. 173-177 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Y.Nakai, K.Ito and H.Ohno: "Ion conduction in molten salts prepared by terminal-charged PEO derivatives" Solid State Ionics. 113-115. 199-204 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] H.Ohno and K.Kato: "Electron transfer reaction of cytochrome c at poly(ethylene oxide)-thiolate-modified gold electrode" Chem.Lett.407-408 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Ohno and K.Ito: "Room-temperature molten salt polymers as a matrix for fast ion conduction" Che.Lett.751-752 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Tominaga and H.Ohno: "Improved ionic conductivity of PEO/sulfonamide lithium salt hybrid by the addition of LiTFSI" Chem.Lett.955-956 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] K.Muneyasu,N.Y.Kawahara,and H.Ohno: "Electron transfer reaction of myoglobin containing DNA-modified hemin in PEO" Solid State Ionics. 113・115. 167-171 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] F.Kurusu and H.Ohno: "Electrochemical responce of glutaraldehyde-cross-linked cytochrome c in PEO" Solid State Ionics. 113・115. 173-177 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Nakai,K.Ito,and H.Ohno: "Ion conduction in molten salts prepared by terminal-charged PEO derivatives" Solid State Ionics. 113・115. 199-204 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] H.Ohno, Y.Nakai, and K.Ito: "Ionic conductivity of molten salts formed by polyether/salt hybrids" Chem.Lett.15-16 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] K.Ito and H.Ohno: "Design of highly ion conductive polyether/salt hybrids" Electochim.Acta. (印刷中).

    • Related Report
      1997 Annual Research Report
  • [Publications] Y.Tominaga and H.Ohno: "High ionic conductivity of PEO/sulfonamide salt hybrids" Solid State Ionics. (印刷中).

    • Related Report
      1997 Annual Research Report

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Published: 1997-04-01   Modified: 2016-04-21  

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