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Creation of Liquid Crystal Actuators Based on Nanostructured Ionic Liquids

Research Project

Project/Area Number 21H02021
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 35030:Organic functional materials-related
Research InstitutionNational Institute for Materials Science

Principal Investigator

YOSHIO Masafumi  国立研究開発法人物質・材料研究機構, 高分子・バイオ材料研究センター, グループリーダー (60345098)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2023: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2022: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2021: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
Keywordsアクチュエータ / 液晶 / イオン伝導 / 自己組織化 / 触覚 / イオン液体 / リチウムイオン / ナノ相分離 / ソフトロボット / ソフトアクチュエータ / ナノチャンネル / 相分離 / 電子伝導体 / イオン伝導体 / 液晶高分子 / カラムナー液晶
Outline of Research at the Start

高齢化社会、リモート社会を支えるキーテクノロジーとして、仮想空間のモノをあたかも触っているかのような感覚を生み出せるゴム手袋のように柔らかく、軽く、低電力で駆動する触覚伝達デバイスの開発が求められている。本研究では、イオンを高速に流すチャンネル構造と強靭な機械的特性を併せ持った新しい液晶材料を活用して、1Vの低電圧で100Hzの振動を示すソフトアクチュエータの開発に関する研究を行う。パターン化された複数の液晶アクチュエータ素子を独立に振動させる電子回路設計を行い、Society5.0に資するバーチャル空間と実空間を繋ぐソフト触力覚デバイスの創成を目指す。

Outline of Final Research Achievements

In this study, we developed ion-conductive actuators exhibiting world-class large displacement, high-frequency responsiveness, and high output through an innovative electrolyte material design strategy that organized ionic liquids into liquid crystal nanostructures. Specifically, we designed photocrosslinked polymer films with columnar, lamellar, and micellar cubic structures formed from photopolymerizable molecules and ionic liquids, as well as microphase-separated composite films from ion-conductive low molecular weight liquid crystals and vinyl polymers. We fabricated three-layer actuator devices with these polymer electrolytes sandwiched between conductive polymers and demonstrated novel applications such as soft gripper robots, bending mirrors, and ring-shaped haptic feedback devices utilizing their high-speed large deformation and high output.

Academic Significance and Societal Importance of the Research Achievements

本研究では、新しい材料設計戦略に基づくイオン伝導性液晶高分子およびこれを活用した高速変形・高出力を示す電気活性ソフトアクチュエータを実現した。これら成果は、新たな液晶材料の機能性材料としての可能性を大いに広げるものであり、エレクトロニクスや医療分野へのインパクトは大きい。特に、本研究で開発した世界初の指輪型触覚提示アクチュエータは、視覚障がい者歩行支援や遠隔コミュニケーションなどへの応用展開が期待できる。新しい物質を生み出す化学を駆使し、従来材料では成し得なかった高性能アクチュエータを実現した本研究成果は、持続可能な超情報化社会およびウェルビーイング社会の実現に大きな貢献を果たすものである。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (41 results)

All 2024 2023 2022 2021 Other

All Int'l Joint Research (3 results) Journal Article (14 results) (of which Peer Reviewed: 14 results,  Open Access: 5 results) Presentation (20 results) (of which Int'l Joint Research: 1 results,  Invited: 4 results) Remarks (3 results) Patent(Industrial Property Rights) (1 results)

  • [Int'l Joint Research] Martin Luther University(ドイツ)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Cairo University(エジプト)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Xi’an Jiaotong University(中国)

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Mechanically Tough Micellar Cubic Liquid-Crystalline Polymer Electrolytes for Electromechanical Actuators2024

    • Author(s)
      Masafumi Yoshio, Che-Hao Wu, Chengyang Liu
    • Journal Title

      Advanced Functional Materials

      Volume: 34 Issue: 21

    • DOI

      10.1002/adfm.202314087

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electric field- and light-responsive oxadiazole bent-core polycatenar liquid crystals2024

    • Author(s)
      Mohamed Alaasar, Ahmed F. Darweesh, Yu Cao, Konstantin Iakoubovskii, Masafumi Yoshio
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 12 Issue: 4 Pages: 1523-1532

    • DOI

      10.1039/d3tc04349e

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Luminescent and photoconductive liquid crystalline lamellar and helical network phases of achiral polycatenars2024

    • Author(s)
      Mohamed Alaasar, Ahmed F. Darweesh, Christian Anders, Konstantin Iakoubovskii, Masafumi Yoshio
    • Journal Title

      Materials Advances

      Volume: 5 Issue: 2 Pages: 561-569

    • DOI

      10.1039/d3ma00841j

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PEDOT:PSS/liquid-crystalline polymer electrolyte actuators: photopolymerization of zwitterionic columnar liquid crystals complexed with a protic ionic liquid2023

    • Author(s)
      Siyu Cao, Chengyang Liu, Masafumi Yoshio
    • Journal Title

      Mater. Chem. Frontiers

      Volume: - Issue: 14 Pages: 2828-2838

    • DOI

      10.1039/d3qm00192j

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Nanostructured liquid-crystalline polymer films for ionic actuators: self-assembly of photopolymerizable ionic itaconate with an ionic liquid2023

    • Author(s)
      Che-Hao Wu, Masafumi Yoshio
    • Journal Title

      Journal of Materials Chemistry C

      Volume: 11 Issue: 30 Pages: 10154-10162

    • DOI

      10.1039/d3tc01441j

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ion-conducting non-flammable liquid crystal-polymer composites for high-frequency soft actuators2023

    • Author(s)
      Chengyang Liu, Siyu Cao, Masafumi Yoshio
    • Journal Title

      Adv. Funct. Mater.

      Volume: - Issue: 25

    • DOI

      10.1002/adfm.202300538

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Anisotropic ion-conductive supramolecular columnar liquid crystals composed of a benzonitrile derivative and ionic liquids2023

    • Author(s)
      Shunichi Suwa, Chengyang Liu, Masafumi Yoshio
    • Journal Title

      Materials Today Chemistry

      Volume: 34 Pages: 101829-101829

    • DOI

      10.1016/j.mtchem.2023.101829

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 液晶性イオン伝導体を用いた電気駆動ソフトアクチュエータの開発2023

    • Author(s)
      吉尾正史
    • Journal Title

      液晶

      Volume: 27 Pages: 190-197

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Highly luminescent and photoconductive columnar liquid crystals with a thiophene-oxadiazole backbone2023

    • Author(s)
      Konstantin Iakoubovskii, Masafumi Yoshio
    • Journal Title

      Chem. Commun.

      Volume: - Issue: 48 Pages: 7443-7446

    • DOI

      10.1039/d3cc01797d

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Photocured liquid-crystalline polymer electrolytes with 3D ion transport pathways for electromechanical actuators2022

    • Author(s)
      Che-Hao Wu, Wenjing Meng, Konstantin Iakoubovskii, Masafumi Yoshio
    • Journal Title

      ACS Appl. Mater. Interfaces

      Volume: 15 Issue: 3 Pages: 4995-4504

    • DOI

      10.1021/acsami.2c19382

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Room-temperature zwitterionic liquid crystals for mechanical actuators2022

    • Author(s)
      Konstantin Iakoubovskii, Masafumi Yoshio
    • Journal Title

      ACS Mater. Au

      Volume: 2 Issue: 6 Pages: 686-689

    • DOI

      10.1021/acsmaterialsau.2c00053

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Electroactive soft actuators based on columnar ionic liquid crystal/polymer composite membrane electrolytes forming 3D continuous ionic channels2022

    • Author(s)
      Siyu Cao, Junko Aimi, Masafumi Yoshio
    • Journal Title

      ACS Appl. Mater. Interfaces

      Volume: 14 Issue: 38 Pages: 43701-43710

    • DOI

      10.1021/acsami.2c11029

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Oxidation-degree-dependent moisture-induced actuation of a graphene oxide film2022

    • Author(s)
      W. Nakanishi, Y. Yamauchi, Y. Nishina, M. Yoshio, M. Takeuchi
    • Journal Title

      RSC Adv.

      Volume: 12 Issue: 6 Pages: 3372-3379

    • DOI

      10.1039/d1ra07773b

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Low-Voltage-Driven Actuators Using Photo-Cross-Linked Ionic Columnar Liquid-Crystalline Polymer Films2021

    • Author(s)
      Wu Che-Hao、Meng Wenjing、Yoshio Masafumi
    • Journal Title

      ACS Materials Letters

      Volume: 4 Issue: 1 Pages: 153-158

    • DOI

      10.1021/acsmaterialslett.1c00565

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] イオンを伝導する液晶高分子の新設計概念とアクチュエータ応用2024

    • Author(s)
      吉尾 正史
    • Organizer
      第二回未来材料ワークショップ(JST)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 両親媒性液晶高分子膜を生かしたソフトアクチュエータ創製2023

    • Author(s)
      吉尾 正史, ウー チェ ハオ
    • Organizer
      第72回高分子討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 液晶性イタコン酸誘導体の光重合によるイオン性ポリマーアクチュエータ2023

    • Author(s)
      吉尾 正史, ウー チェ ハオ
    • Organizer
      2023年日本液晶学会討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Mechanically Tough Micellar Cubic Liquid-Crystalline Polymer Electrolytes for Electromechanical Actuators2023

    • Author(s)
      WU Che-Hao, YOSHIO Masafumi
    • Organizer
      第72回高分子学会年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] イオン-ニトリル双極子相互作用を利用したカラムナー液晶性イオン伝導材料の開発2023

    • Author(s)
      諏訪 俊一, 吉尾 正史
    • Organizer
      第72回高分子学会年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Ion-Conducting Non-Flammable Liquid Crystal-Polymer Composites for High-Frequency Soft Actuators2023

    • Author(s)
      LIU Chengyang, YOSHIO Masafumi
    • Organizer
      第72回高分子学会年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] π共役カラムナー液晶性フォトダイオード2023

    • Author(s)
      吉尾 正史
    • Organizer
      第72回高分子学会年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ミクロ相分離構造を有する二次元イオン伝導液晶/ポリマー複合フィルムの構築と電気駆動アクチュエータ機能2023

    • Author(s)
      諏訪 俊一, 吉尾 正史
    • Organizer
      第72回高分子学会年次大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 高速振動と高出力を両立させた液晶高分子アクチュエータの開発と触覚提示デバイスへの展開2023

    • Author(s)
      吉尾 正史
    • Organizer
      第8回材料相模セミナー(公益財団法人相模中央化学研究所)
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 液晶分子配列を生かした機能性ソフトマテリアルの創出2023

    • Author(s)
      吉尾 正史
    • Organizer
      上智大学物質生命工学科コロキウム
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] イオン伝導パスを有する電気駆動液晶アクチュエータ2022

    • Author(s)
      吉尾正史
    • Organizer
      第10回ソフトマター研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Dimension control of ion transport pathways for electromechanical actuators2022

    • Author(s)
      Masafumi Yoshio
    • Organizer
      4th International symposium on nanoarchitectronics for mechanobiology Mechano-X Bio&Chem
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Electroactive soft actuators based on liquid-crystalline polymer composite membranes composed of phosphate esters, lithium salts, polyvinyl chloride, and poly(vinylidene fluoride-co-hexafluoropropylene)2022

    • Author(s)
      Chengyang Liu, Masafumi Yoshio
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ナノ相分離液晶電解質を用いる電気活性ソフトアクチュエータ2022

    • Author(s)
      吉尾正史, ウー チェ ハオ, 曹 思雨, リュウ チェンヤン
    • Organizer
      第71回高分子討論会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 垂直配向ナノシート/PEO/イオン液体複合型ゲルアクチュエータの開発2022

    • Author(s)
      末嶋紗理, 稲富 巧, 吉尾正史, 宮元展義
    • Organizer
      第59回化学関連支部合同九州大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Development of ionic liquid-crystalline polymer membrane actuators2022

    • Author(s)
      Che-Hao Wu, Masafumi Yoshio
    • Organizer
      第71回高分子年次大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 垂直配向ナノシート/ポリエチレンオキシド/イオン液体複合型ゲルアクチュエータの開発2022

    • Author(s)
      末嶋紗理, 稲富 巧, 吉尾正史, 宮元展義
    • Organizer
      西日本ナノシート研究会春季会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 光重合性イオン液晶によるナノ構造プロトン伝導高分子の設計2021

    • Author(s)
      吉尾正史、曹思雨
    • Organizer
      第70回高分子討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Construction of Nanostructured Soft Actuators Based on Ionic Liquid Crystal/Polymer Composite Electrolytes2021

    • Author(s)
      CAO Siyu, YOSHIO Masafumi
    • Organizer
      第70回高分子討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Development of Ionically-Active Columnar Liquid-Crystalline Polymer Film Actuators2021

    • Author(s)
      WU Che-Hao, YOSHIO Masafumi
    • Organizer
      第70回高分子討論会
    • Related Report
      2021 Annual Research Report
  • [Remarks] 物質・材料研究機構分子メカトロニクスグループのホームページ

    • URL

      https://www.nims.go.jp/group/molmechatro/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 高分子・バイオ材料研究センター内の分子メカトロニクスグループホームページ

    • URL

      https://www.nims.go.jp/research/group/molecular-mechatronics/

    • Related Report
      2022 Annual Research Report
  • [Remarks] 分子メカトロニクスグループホームページ

    • URL

      https://www.nims.go.jp/group/molmechatro/index.html

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
  • [Patent(Industrial Property Rights)] 液晶電解質膜、並びにアクチュエータ、圧電素子及び応力センサ2021

    • Inventor(s)
      吉尾正史、曹思雨
    • Industrial Property Rights Holder
      物質・材料研究機構
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2021-079821
    • Filing Date
      2021
    • Related Report
      2021 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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