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2004 Fiscal Year Final Research Report Summary

Development of Anisotropically Ion and Mass-Transporting Materials through Self-Organization of Ionic Liquids

Research Project

Project/Area Number 15350077
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Functional materials chemistry
Research InstitutionThe University of Tokyo

Principal Investigator

KATO Takashi  The University of Tokyo, Graduate School of Engineering, Professor, 大学院・工学系研究科, 教授 (70214377)

Co-Investigator(Kenkyū-buntansha) YOSHIO Masafumi  The University of Tokyo, Graduate School of Engineering, Research Associate, 大学院・工学系研究科, 助手 (60345098)
Project Period (FY) 2003 – 2004
KeywordsIONIC LIQUID / LIQUID CRYSTAL / SUPRAMOLECULE / SELF-ORGANIZATION / NANOPHASE SEGREGATION / ANISOTROPY / ION TRANSPORT / MASS TRANSPORT
Research Abstract

The fabrication of functional molecular materials forming hierarchical ordered structures is one of important subjects for the next generation. Use of self-organization processes is a versatile tool for the preparation of such materials. In particular, electron and ion-transporting organic materials have attracted attention due to their potential applications in the fields of molecular devices and transportation of information and energy. Among the ion-transporting materials, we focused on ionic liquids that are organic molten salts showing high ionic conductivities. The objective in this study is to develop low-dimensionally ion-transporting materials through self-organization of ionic liquid crystals obtained by the chemical modification of imidazolium salts. Here we report on two types of anisotropic ion-transporting materials : (1)one-dimensionally (1D) ion-transporting columnar liquid crystals ; (2)two-dimensionally (2D) ion-transporting polymeric films.
(1)1D ion-transporting colu … More mnar liquid crystals
We designed and prepared fan-shaped block molecules comprising lipophilic part and imidazolium moieties. These molecules exhibited columnar liquid crystalline phases. In these structures, the tonic parts self-organized into the center of columns. The columns were macroscopically aligned parallel to the glass surface by mechanical shearing. The ionic conductivities parallel to the columnar axis were higher than those perpendicular to the axis. For the first time, anisotropic 1D ion conduction was achieved for columnar liquid crystalline materials.
(2)2D ion-transporting polymeric films
Smectic liquid crystalline imidazolium salts having polymerizable groups were prepared to obtain 2D ion-conductive mechanically stable polymeric films. These molecules in the smectic A phase spontaneously formed homeotropic monodomains on the glass surface. Self-standing polymeric films with layered nanostructures were obtained by photopolymerization of the oriented materials. They showed anisotropic 2D tonic conductivities. Less

  • Research Products

    (15 results)

All 2005 2004 2003 Other

All Journal Article (13 results) Book (2 results)

  • [Journal Article] 超分子液晶-刺激・環境に応答する機能材料2005

    • Author(s)
      加藤 隆史
    • Journal Title

      化学と工業 58

      Pages: 561-564

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Supramolecular Liquid Crystals : Functional Materials Responsive to Stimuli and Environment2005

    • Author(s)
      T.Kato
    • Journal Title

      Chemistry and Chemical Industry 58

      Pages: 561-564

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] One-Dimensional Ion Transport in Self-Organized Columnar Ionic Liquids2004

    • Author(s)
      M.Yoshio, T.Mukai, H.Ohno, T.Kato
    • Journal Title

      Journal of the American Chemical Society 126

      Pages: 994-995

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Self-Assembly of an Ionic Liquid and a Hydroxyl-Terminated Liquid Crystal : Anisotropic Ion Conduction in Layered Nanostructures2004

    • Author(s)
      M.Yoshio, T.Mukai, M.Yoshizawa, H.Ohno, T.Kato
    • Journal Title

      Molecular Crystals and Liquid Crystals 413

      Pages: 99-108

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 刺激や環境に応答する新しい液晶性分子複合体の構築2004

    • Author(s)
      西井 雅之, 加藤 隆史
    • Journal Title

      機能材料(2004年1月号) 24

      Pages: 23-29

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 水素結合の動的制御による刺激・環境応答性強相関ソフトマテリアルの構築2004

    • Author(s)
      加藤 隆史
    • Journal Title

      機能材料(2004年4月号) 24

      Pages: 38-41

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 自己組織化により機能材料を創る2004

    • Author(s)
      加藤 隆史
    • Journal Title

      現代化学(2004年7月号)

      Pages: 27-31

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Development of Novel Liquid-Crystalline Complexes Responsive to Stimuli and Environment2004

    • Author(s)
      M.Nishii, T.Kato
    • Journal Title

      Function & Materials 24(1)

      Pages: 23-29

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Development of Strongly Correlated Softmaterials Responsive to Stimuli and Environment by Dynamic Control of Hydrogen Bonds2004

    • Author(s)
      T.Kato
    • Journal Title

      Function & Materials 24(4)

      Pages: 38-41

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Preparation of Functional Materials through Self-Organization Processes2004

    • Author(s)
      T.Kato
    • Journal Title

      Gendaikagaku 400

      Pages: 27-31

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Nanostructured Ion-Conductive Films : Layered Assembly of a Side-Chain Liquid-Crystalline Polymer with an Imidazolium Ionic Moiety2003

    • Author(s)
      K.Hoshino, M.Yoshio, T.Mukai, K.Kishimoto, H.Ohno, T.Kato
    • Journal Title

      Journal of Polymer Science Part A : Polymer Chemistry 41

      Pages: 3486-3492

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Liquid Crystalline Ionic Liquids2003

    • Author(s)
      M.Yoshio, T.Kato
    • Journal Title

      Ionic Liquids : The Front and Future of Material Development (Ed : H.Ohno)(CMC, Tokyo) Chapter 5

      Pages: 161-168

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Liquid Crystalline Ionic Liquids

    • Author(s)
      T.Kato, M.Yoshio
    • Journal Title

      Electrochemical Aspects of Ionic Liquids (Ed : H.Ohno) (John Wiley & Sons, Inc.) (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] Electrochemical Aspects of Ionic Liquids2005

    • Author(s)
      T.Kato, M.Yoshio(分担執筆)
    • Total Pages
      14
    • Publisher
      John Wiley & Sons, Inc.
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] イオン性液体-開発の最前線と未来-2003

    • Author(s)
      吉尾 正史, 加藤 隆史(分担執筆)
    • Total Pages
      8
    • Publisher
      シーエムシー出版
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2006-07-11  

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