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Development of nematic liquid crystalline materials based on sulfur-containing rod-like molecules

Research Project

Project/Area Number 15H06285
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeSingle-year Grants
Research Field Nanostructural chemistry
Research InstitutionToyohashi University of Technology

Principal Investigator

Arakawa Yuki  豊橋技術科学大学, 工学(系)研究科(研究院), 助教 (30757365)

Project Period (FY) 2015-08-28 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords液晶材料 / 高複屈折性材料 / 硫黄 / 液晶 / ネマチック相 / 棒状分子 / 複屈折 / サイボタクチックネマチック相
Outline of Final Research Achievements

We designed and synthesized novel sulfur-containing rod-like liquid crystalline molecules, and investigated their phase transition behavior and mesogenic structures in detail. Many of the obtained compounds show fluid nematic phase which is important for optical materials. In addition, it was found that they exhibit the proximity of neighboring molecules, larger increasing degree of order parameter and birefringence with respect to temperature, compared with alkyl and alkoxy analogs. They are ascribed to the intermolecular attractive interactin derived from sulfur atoms of the neighboring molecules.

Report

(3 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Annual Research Report
  • Research Products

    (5 results)

All 2017 2016

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Acknowledgement Compliant: 2 results) Presentation (3 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Phase transitions and birefringence of bistolane-based nematic molecules with an alkyl, alkoxy and alkylthio group2017

    • Author(s)
      Y. Arakawa and H. Tsuji
    • Journal Title

      Mol. Cryst. Liq. Cryst.

      Volume: 印刷中 Issue: 1 Pages: 422-429

    • DOI

      10.1080/15421406.2017.1289662

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] The effect of fluorine substitutions on the refractive index properties for π-conjugated calamitic nematic materials2017

    • Author(s)
      Y. Arakawa and H. Tsuji
    • Journal Title

      Phase Transit.

      Volume: 印刷中 Issue: 6 Pages: 549-556

    • DOI

      10.1080/01411594.2016.1233555

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Design of novel bistolane-based liquid crystalline molecules with an alkylthio group for high-birefringence materials2016

    • Author(s)
      Yuki Arakawa, Sungmin Kang, Hideto Tsuji, Junji Watanabe and Gen-ichi Konishi
    • Organizer
      Congerence on Liquid Crystals 2016
    • Place of Presentation
      Krynica-Zdroj (Poland)
    • Year and Date
      2016-09-18
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 大きなπ共役系構造を側鎖に有する高分子液晶の合成とその配向特性2016

    • Author(s)
      荒川優樹、辻秀人
    • Organizer
      第65回高分子学会年次大会
    • Place of Presentation
      神戸国際会議場・展示場
    • Year and Date
      2016-05-25
    • Related Report
      2015 Annual Research Report
  • [Presentation] アルキルチオ基を有する新規ビスフェニルベンゾエート系液晶分子の合成と物性評価2016

    • Author(s)
      佐々木幸登、荒川優樹、辻秀人
    • Organizer
      第65回高分子学会年次大会
    • Place of Presentation
      神戸国際会議場・展示場
    • Year and Date
      2016-05-25
    • Related Report
      2015 Annual Research Report

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Published: 2015-08-26   Modified: 2018-03-22  

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