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2012 Fiscal Year Annual Research Report

コレステリック液晶を用いた電解不斉重合と干渉光エレクトロクロミズム

Research Project

Project/Area Number 22550161
Research InstitutionUniversity of Tsukuba

Principal Investigator

後藤 博正  筑波大学, 数理物質系, 准教授 (40292528)

Project Period (FY) 2010-04-01 – 2013-03-31
Keywords液晶 / 導電性高分子 / 電解不斉重合法 / キラル / 旋光性 / 円偏光二色性
Research Abstract

電気化学的ドープによる表面構造の変化の評価をまず行った。ここでは電気化学的にドープを行ったサンプルの表面状態をAFM で評価し、凹凸の間隔(ラセン構造の半ピッチに相当)の変化を調べた。 選択反射光の評価と電気化学的測定:選択反射の角度依存性を角度可変型反射スペクトルにより評価した。このとき電気化学的酸化・還元状態(ドープ・脱ドープ状態)の反射スペクトルを測定し、干渉光の角度依存性や、発色を調べ、CIEカラースペースで評価した。以上により「選択反射干渉光エレクトロクロミズム」確立した。
さらに、コレステリック-ネマチック-コレステリック液晶秩序をもつ三層型フィルムを作成し、この発色を確認するとともにフォトニック生物と比較した。また結晶中での電解重合にも成功した。これを基に、結晶-液晶の二層構造をもつサンプルを作成し、この金属様反射光沢を確認した。
本研究により「電解不斉重合」による構造色を伴う、干渉光変調型エレクトロクロミックポリマーの合成と評価を行った。

Current Status of Research Progress
Reason

24年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

24年度が最終年度であるため、記入しない。

  • Research Products

    (23 results)

All 2013 2012 Other

All Journal Article (5 results) (of which Peer Reviewed: 4 results) Presentation (17 results) (of which Invited: 1 results) Book (1 results)

  • [Journal Article] Helical twisting power of three-ring chiral molecules and polymerization in cholesteric electrolyte solution2013

    • Author(s)
      H. Hayashi
    • Journal Title

      Materials Chemistry and Physics

      Volume: 137 Pages: 816-824

    • Peer Reviewed
  • [Journal Article] Liquid Crystal Stepwise Electropolymerization -An Approach to Create Insect Photonic Structure2013

    • Author(s)
      H. Goto
    • Journal Title

      RSC Advances

      Volume: 印刷中 Pages: 印刷中

    • DOI

      10.1039/C3RA23409F

    • Peer Reviewed
  • [Journal Article] Optical Activity of Heteroaromatic Conjugated Polymer Films Prepared by Asymmetric Electrochemical Polymerization in Cholesteric Liquid Crystals: Structural Function for Chiral Induction2013

    • Author(s)
      K. Kawabata
    • Journal Title

      Macromolecules

      Volume: 46 Pages: 46

    • DOI

      10.1021/ma400302j

    • Peer Reviewed
  • [Journal Article] Electrochemical Polymerization in Crystal ;Preparation of Polybithiophene with Crystal Order2012

    • Author(s)
      H. Goto
    • Journal Title

      J Polym Sci Part A: Polym Chem

      Volume: 50 Pages: 622-628

    • DOI

      DOI:10.1002/pola.25071.

    • Peer Reviewed
  • [Journal Article] Dynamic Emission Controllable Polymer Nanofibers : Electro-fluorescence Chromism and Polarized Emission of Polycarbazole Derivatives2012

    • Author(s)
      Kohsuke Kawabata
    • Journal Title

      Chemistry - A European Journal

      Volume: 18 Pages: 15065-15072

    • DOI

      10.1002/chem.201201471

  • [Presentation] Synthesis of a pyrimidine based novel chiral inducer for electrochemical polymerization in liquid crystal2012

    • Author(s)
      Aohan Wang, Kohsuke Kawabata, Hiromasa Goto
    • Organizer
      ElecMol '12
    • Place of Presentation
      Grenoble, France
    • Year and Date
      20121204-07
  • [Presentation] Preparation of a polymer semiconducting grating in liquid crystal template as bottom up technique2012

    • Author(s)
      Aohan Wang(Hiromasa Goto)
    • Organizer
      1st International Workshop on Nano and Microstructure Design (IWNMD2012)
    • Place of Presentation
      U. Tsukuba
    • Year and Date
      20121121-20121121
  • [Presentation] ネマチック液晶溶媒を用いた配向性共役系高分子膜の電解合成2012

    • Author(s)
      川畑公輔(後藤博正)
    • Organizer
      第2回CSJ化学フェスタ
    • Place of Presentation
      東京工業大学
    • Year and Date
      20121014-20121017
  • [Presentation] Surface observation of a pi-conjugated polymer synthesized in cholesteric liquid crystal containing pyrimidine derivates as chiral inducer2012

    • Author(s)
      Aohan Wang(Hiromasa Goto)
    • Organizer
      第61回高分子討論会
    • Place of Presentation
      名古屋工業大学
    • Year and Date
      20120919-20120921
  • [Presentation] Asymmetric Synthesis Produces Optical Rotation, Circular Dichroism, and Interference2012

    • Author(s)
      Hiromasa Goto
    • Organizer
      XXIst International Symposium on the Jahn-Teller Effect
    • Place of Presentation
      U. Tsukuba
    • Year and Date
      20120826-20120830
    • Invited
  • [Presentation] he Properties of Conducting Polymer Films Prepared by •Electrolytic Polymerization in Liquid Crystal Electrolytes Containing Antiferroelectric Chiral Matters.2012

    • Author(s)
      Hitoshi Hayash(Hiromasa Goto)
    • Organizer
      XXIst International Symposium on the Jahn-Teller Effect
    • Place of Presentation
      U. Tsukuba
    • Year and Date
      20120826-20120830
  • [Presentation] Pyrrole Based Asymmetric Polymers Having Finger Print Structure2012

    • Author(s)
      Kazuho Ishise(Hiromasa Goto)
    • Organizer
      XXIst International Symposium on the Jahn-Teller Effect
    • Place of Presentation
      U. Tsukuba
    • Year and Date
      20120826-20120830
  • [Presentation] Asymmetric π-Conjugated Polymer with Fingerprint Texture and Fibril Structure2012

    • Author(s)
      Aohan Wang(Hiromasa Goto)
    • Organizer
      XXIst International Symposium on the Jahn-Teller Effect
    • Place of Presentation
      U. Tsukuba
    • Year and Date
      20120826-20120830
  • [Presentation] Uniaxially Ordered Conjugated Polymer Films Prepared by Electrochemical Polymerization in a Nematic Liquid Crystal2012

    • Author(s)
      Kohsuke Kawabata(Hiromasa Goto)
    • Organizer
      International Conference on Science and Technology of Synthetic Metals
    • Place of Presentation
      Atlanta, USA
    • Year and Date
      20120708-20120713
  • [Presentation] 液晶中における重合反応I2012

    • Author(s)
      後藤博正
    • Organizer
      繊維学会秋季研究発表会
    • Place of Presentation
      福井大学
    • Year and Date
      2012-09-25
  • [Presentation] 液晶電解不斉重合法により作製した共役系高分子膜の光学活性2012

    • Author(s)
      川畑公輔、後藤博正
    • Organizer
      第61回高分子討論会
    • Place of Presentation
      名古屋工業大学
    • Year and Date
      2012-09-20
  • [Presentation] 電解重合法により作製したポリジチエノピロール誘導体の表面構造

    • Author(s)
      深山大輔(後藤博正)
    • Organizer
      SATテクノロジー・ショーケース
    • Place of Presentation
      つくば
  • [Presentation] Asymmetric Electrosynthesis of Furan-based Intramolecular Donor-Acceptor Conjugated Polymer Films in a Liquid Crystal Medium

    • Author(s)
      Takahiro Seino(Hiromasa Goto)
    • Organizer
      International Workshop on Science and Patents 2012
    • Place of Presentation
      U. Tsukuba
  • [Presentation] Synthesis of nitrogen-containing conjugated polymer in liquid crystal

    • Author(s)
      Kazuho Ishise(Hiromasa Goto)
    • Organizer
      International Workshop on Science and Patents 2012
    • Place of Presentation
      U. Tsukuba
  • [Presentation] Electrochemical polymerization of conjugated polymer in a liquid crystal

    • Author(s)
      Yusuke Nitta(Hiromasa Goto)
    • Organizer
      International Workshop on Science and Patents 2012
    • Place of Presentation
      U. Tsukuba
  • [Presentation] Surface morphology of poly-dithienopyrrole derivatives prepared by

    • Author(s)
      Daisuke Fukayama(Hiromasa Goto)
    • Organizer
      International Workshop on Science and Patents 2012
    • Place of Presentation
      U. Tsukuba
  • [Presentation] Uniaxially Ordered Conjugated Polymer Films Prepared by Electrochemical Polymerization in Aligned Liquid Crystal reaction medium

    • Author(s)
      Kohsuke Kawabata(Hiromasa Goto)
    • Organizer
      International Workshop on Science and Patents 2012
    • Place of Presentation
      U. Tsukuba
  • [Book] PEDOTの材料物性とデバイス応用2012

    • Author(s)
      後藤博正
    • Total Pages
      43-57
    • Publisher
      サイエンス&テクノロジー

URL: 

Published: 2014-07-24  

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