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Theoretical study of cholesteric phase in liquid crystal composite systems

Research Project

Project/Area Number 26400435
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Biological physics/Chemical physics/Soft matter physics
Research InstitutionKyushu Institute of Technology

Principal Investigator

Matsuyama Akihiko  九州工業大学, 大学院情報工学研究院, 教授 (60252342)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsコレステリック液晶 / 高分子液晶 / 液晶分子 / コレステリック液晶ゲル / コレステリック相 / キラリティー / キラルネマチック / 液晶 / 高分子 / 液晶複合系 / ヘリコイダル相 / 液晶ゲル / ネマチックーコレステリック相転移
Outline of Final Research Achievements

The aim of this research is to construct a mean field theory on the cholesteric phase in "liquid crystal complex systems" such as (1) mixtures of liquid crystal molecule and polymer (2) mixtures of liquid crystal molecule and long rod like molecule like nanotube, It aimed to elucidate and predict phase separations and phase transitions, including cholesterol phases, depending on temperature and concentration.

In the three years during this project, the theory of cholesteric phase in a mixture of macromolecule and liquid crystal molecule was constructed, and the molecular theory was made about helical twisting power (HTP) and phase separation. Furthermore, various phase transitions due to external fields such as electric field and magnetic field of cholesteric phase in the mixtures of liquid crystal molecules were predicted. The theory of cholesteric liquid crystal gel was also constructed.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (23 results)

All 2017 2016 2015 2014 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 6 results,  Acknowledgement Compliant: 6 results) Presentation (14 results) (of which Int'l Joint Research: 4 results,  Invited: 5 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Theory of a helicoidal cholesteric phase induced by an external field2016

    • Author(s)
      Akihiko Matsuyama
    • Journal Title

      Liquid Crystals

      Volume: 43 Issue: 6 Pages: 783-795

    • DOI

      10.1080/02678292.2016.1144810

    • Related Report
      2016 Annual Research Report 2015 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Director-Pitch Coupling-induced Twist-Bend Nematic Phase,2016

    • Author(s)
      Akihiko Matsuyama
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 85 Issue: 11 Pages: 114606-114606

    • DOI

      10.7566/jpsj.85.114606

    • NAID

      210000134148

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Biaxiality of cholesteric phases in rod-like polymer solutions2015

    • Author(s)
      Akihiko Matsuyama
    • Journal Title

      Liquid Crystals

      Volume: 42 Issue: 4 Pages: 423-429

    • DOI

      10.1080/02678292.2015.1006148

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Phase Separations in Mixtures of a Flexible Polymer and a Cholesteric Liquid Crystal in the Presence of an External Field2015

    • Author(s)
      Akihiko Matsuyama
    • Journal Title

      Mol. Cryst. Liq. Cryst.

      Volume: 印刷中

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Volume Phase Transitions of Cholesteric Liquid Crystalline Gels2015

    • Author(s)
      Akihiko Matsuyama
    • Journal Title

      J. Chem. Phys.

      Volume: 142 Issue: 17

    • DOI

      10.1063/1.4919651

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Phase diagrams of mixtures of a polymer and a cholesteric liquid crystal under an external field2014

    • Author(s)
      Akihiko Matsuyama
    • Journal Title

      J. Chem. Phys.

      Volume: 141 Issue: 18

    • DOI

      10.1063/1.4901085

    • Related Report
      2014 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 外場によるねじれた液晶相の理論2017

    • Author(s)
      松山明彦
    • Organizer
      物理学会
    • Place of Presentation
      阪大(豊中キャンパス)
    • Year and Date
      2017-03-17
    • Related Report
      2016 Annual Research Report
  • [Presentation] Director-pitch coupling induced twist-bend nematic phase2016

    • Author(s)
      Akihiko Matsuyama
    • Organizer
      第4回 ISMC2016
    • Place of Presentation
      グルノーブル(フランス)
    • Year and Date
      2016-09-12
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ネマチック液晶とコレステリック液晶の混合系の理論2016

    • Author(s)
      松山明彦
    • Organizer
      2016年日本液晶学会討論会
    • Place of Presentation
      大阪工業大学
    • Year and Date
      2016-09-05
    • Related Report
      2016 Annual Research Report
  • [Presentation] ネマチック液晶とコレステリック液晶の混合系の理論2016

    • Author(s)
      松山明彦
    • Organizer
      ソフトマターダイナミクス研究会
    • Place of Presentation
      和歌山県 白浜
    • Year and Date
      2016-08-18
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Threory for Mixtures of cholesteric and nematic molecules2016

    • Author(s)
      Akihiko Matsuyama
    • Organizer
      日伊液晶ワークショップ
    • Place of Presentation
      京都市国際交流会館
    • Year and Date
      2016-07-05
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ねじれた液晶相の理論2016

    • Author(s)
      松山明彦
    • Organizer
      日本液晶学会ソフトマターフォーラム講演会「液晶とねじれ」
    • Place of Presentation
      九大(博多駅オフィス)
    • Year and Date
      2016-01-28
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] Theory of liquid crystalline composite2016

    • Author(s)
      Akihiko Matsuyama
    • Organizer
      九工大ー台湾ジョイントWS
    • Place of Presentation
      九工大 戸畑キャンパス
    • Year and Date
      2016-01-09
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Vollume phase transitions of cholesteric elastomers2015

    • Author(s)
      Akihiko Matsuyama
    • Organizer
      ILCEC2015
    • Place of Presentation
      Erice, Italy
    • Year and Date
      2015-10-01
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Field-induced twist-bend nematic phase2015

    • Author(s)
      松山明彦
    • Organizer
      第5回CREST研究会
    • Place of Presentation
      志賀島 福岡県
    • Year and Date
      2015-08-25
    • Related Report
      2015 Research-status Report
    • Invited
  • [Presentation] コレステリック液晶ゲルの体積相転移2015

    • Author(s)
      松山明彦
    • Organizer
      物理学会
    • Place of Presentation
      早稲田大学 早稲田キャンパス
    • Year and Date
      2015-03-21 – 2015-03-24
    • Related Report
      2014 Research-status Report
  • [Presentation] Volume phase transiitons of cholesteric liquid crystals2015

    • Author(s)
      Akihiko Matsuyama
    • Organizer
      International Soft Matter Conference
    • Place of Presentation
      東京大学生産技術研究所
    • Year and Date
      2015-03-16 – 2015-03-18
    • Related Report
      2014 Research-status Report
  • [Presentation] Theory of polymer dispersed cholesteric liquid crystals2015

    • Author(s)
      Akihiko Matsuyama
    • Organizer
      International Soft Matter Conference
    • Place of Presentation
      東京大学生産技術研究所
    • Year and Date
      2015-03-16 – 2015-03-18
    • Related Report
      2014 Research-status Report
  • [Presentation] 高分子と液晶分子の混合系における、外場が引き起こすコレステリックーネマチック相転移2014

    • Author(s)
      松山明彦
    • Organizer
      2014年日本液晶学会 討論会
    • Place of Presentation
      くにびきメッセ(島根県松江市)
    • Year and Date
      2014-09-08 – 2014-09-10
    • Related Report
      2014 Research-status Report
  • [Presentation] Theory of polymer-dispersed chorsteric liquid crystals2014

    • Author(s)
      Akihiko Matsuyama
    • Organizer
      International Liquid Crystal Conference 2014
    • Place of Presentation
      ダブリン(アイルランド)
    • Year and Date
      2014-06-29 – 2014-07-05
    • Related Report
      2014 Research-status Report
  • [Book] Chapt. 10.3 in The Liquid Crystal Display Story ed.by N. Koide2014

    • Author(s)
      Akihiko Matsuyama
    • Total Pages
      416
    • Publisher
      Springer, Japan
    • Related Report
      2014 Research-status Report
  • [Remarks] 研究紹介

    • URL

      http://iona.bio.kyutech.ac.jp/~aki/

    • Related Report
      2016 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

      http://iona.bio.kyutech.ac.jp/~aki/

    • Related Report
      2015 Research-status Report 2014 Research-status Report

URL: 

Published: 2014-04-04   Modified: 2018-03-22  

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