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Dynamics of meso-scale phase separation of liquid crystals/polymers with self-assembly orientation ordering induced by nonuniform-irradiated photopolymerization

Research Project

Project/Area Number 15K05257
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 InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

Kakiuchida Hiroshi  国立研究開発法人産業技術総合研究所, 構造材料研究部門, 主任研究員 (40343660)

Co-Investigator(Kenkyū-buntansha) 吉村 和記  国立研究開発法人産業技術総合研究所, 材料・化学領域, 審議役 (50358347)
Co-Investigator(Renkei-kenkyūsha) KOBAYASHI Eiichi  佐賀県地域産業支援センター九州シンクロトロン光研究センター, 主任研究員 (80319376)
Project Period (FY) 2015-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords高分子ネットワーク液晶 / 光重合誘起相分離 / 不均一露光 / ネマチック-等方相転移 / 配向秩序 / ホログラフィック素子 / 熱応答型調光窓 / スマートウィンドウ / 高分子分散液晶 / 反応性メソゲン / 光散乱 / 分子配向秩序 / 相分離ドメイン / 液晶高分子 / 配向秩序転移 / サーモトロピック / 自己組織化 / 相転移
Outline of Final Research Achievements

We have developed polymer network liquid crystals (PNLCs) possessing various meso-scale phase separation structures of orientation-ordered liquid crystals (LCs) and polymers. These structures could not be fabricated by conventional uniform irradiations and were achieved through photopolymerization-induced phase separation (PPIPS) conducted by one-time nonuniform irradiation. The relationship of the size of aggregated LCs and the distribution of LC molecular orientation order with light scattering properties was studied using polarizing optical microscopy and scattering profile observation. Furthermore, the results were compared with optical simulations, and then the dynamics of orientation ordering of LC molecules in PNLC structures was discussed. These knowledges were applied to thermoresponsive PNLC light attenuators improved regarding the magnitude of solar transmittance change and enlargement of devices.

Report

(4 results)
  • 2017 Annual Research Report   Final Research Report ( PDF )
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (18 results)

All 2018 2017 2016 2015

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results,  Acknowledgement Compliant: 2 results) Presentation (12 results) (of which Int'l Joint Research: 6 results,  Invited: 2 results) Book (2 results)

  • [Journal Article] Reverse-mode thermoresponsive light attenuators produced by optical anisotropic composites of nematic liquid crystals and reactive mesogens2018

    • Author(s)
      Hiroshi Kakiuchida and Akifumi Ogiwara
    • Journal Title

      Optical Materials

      Volume: 78 Pages: 273-278

    • DOI

      10.1016/j.optmat.2018.01.046

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Multiple Bragg Diffractions with Different Wavelengths and Polarizations Composed of Liquid Crystal/Polymer Periodic Phases2017

    • Author(s)
      Hiroshi Kakiuchida, Akifumi Ogiwara,and Akihiko Matsuyama
    • Journal Title

      ACS Omega

      Volume: 2 Issue: 9 Pages: 6081-6090

    • DOI

      10.1021/acsomega.7b01149

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Thermal modulation of selective transmittance spectra by combination of cholesteric liquid crystal cells2016

    • Author(s)
      Akifumi Ogiwara, Hiroshi Kakiuchida
    • Journal Title

      Proc. of SPIE

      Volume: 9940 Pages: 99401I-99401I

    • DOI

      10.1117/12.2237090

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Thermally tunable light filter composed of cholesteric liquid crystals with different temperature dependence2016

    • Author(s)
      Akifumi Ogiwara, Hiroshi Kakiuchida
    • Journal Title

      Sol. Energy Mater. Sol. Cells.

      Volume: 157 Pages: 250-258

    • DOI

      10.1016/j.solmat.2016.05.039

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] Thermoresponsive light scattering from meso-scale composites of liquid crystals and reactive mesogens2018

    • Author(s)
      Hiroshi Kakiuchida, Akihiko Matsuyama, Eiichi Kobayashi, and Akifumi Ogiwara
    • Organizer
      27th International Liquid Crystal Conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 液晶/反応性メソゲンのメゾ相分離構造の形成と光散乱の温度特性2018

    • Author(s)
      垣内田洋、荻原昭文
    • Organizer
      第65回応用物理学会春季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 官能基数の少ないモノマーで作製したHPDLCの回折特性2017

    • Author(s)
      垣内田洋、荻原昭文、松山明彦
    • Organizer
      第78回応用物理学会秋季学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Photo-polymerization induced phase separation to fabricate elaborate Bragg diffractors composed of liquid crystal and polymer phases2016

    • Author(s)
      H. Kakiuchida and A. Ogiwara
    • Organizer
      RadTech Asia 2016
    • Place of Presentation
      Hilton Tokyo Odaiba
    • Year and Date
      2016-10-24
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 液晶材料を使った次世代型建築窓材2016

    • Author(s)
      垣内田洋、荻原昭文
    • Organizer
      日本液晶学会討論会
    • Place of Presentation
      大阪工業大学
    • Year and Date
      2016-09-13
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] Thermo-operated optical attenuators using polymer dispersed liquid crystals for smart windows2016

    • Author(s)
      H. Kakiuchida, E. Kobayashi, and A. Ogiwara
    • Organizer
      26th International Liquid Crystal Conference
    • Place of Presentation
      Kent State University (Ohio, USA)
    • Year and Date
      2016-07-31
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Various polarized Bragg diffractive devices with holographic polymer dispersed liquid crystals produced by one-step interferential exposure2016

    • Author(s)
      H. Kakiuchida, A. Matsuyama, and A. Ogiwara
    • Organizer
      26th International Liquid Crystal Conference
    • Place of Presentation
      Kent State University (Ohio, USA)
    • Year and Date
      2016-07-31
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Orientation (dis)ordering of liquid crystal/reactive mesogen mixture in photo-polymerization induced phase separation2016

    • Author(s)
      H. Kakiuchida, E. Kobayashi, and A. Ogiwara
    • Organizer
      The 8th Japanese-Italian Liquid Crystal Workshop (JILCW2016)
    • Place of Presentation
      Kyoto International Conference House (Kokoka)
    • Year and Date
      2016-07-06
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] 光重合による液晶/高分子の相分離および配向秩序形成の制御2016

    • Author(s)
      垣内田洋
    • Organizer
      ラドテック研究会講演会
    • Place of Presentation
      東京理科大学神楽坂キャンパス
    • Year and Date
      2016-04-26
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 一回のホログラフィック露光で作製した高分子分散液晶による偏光制御型の波長切換え素子2016

    • Author(s)
      垣内田洋、荻原昭文
    • Organizer
      第63回応用物理学会春季学術講演会
    • Place of Presentation
      東京工業大学大岡山キャンパス
    • Year and Date
      2016-03-19
    • Related Report
      2015 Research-status Report
  • [Presentation] Photo-polymerization induced phase separation and orientation ordering of liquid crystal/reactive mesogen: toward thermo-operated optical attenuators2015

    • Author(s)
      Hiroshi Kakiuchida, Kazuki Yoshimura and Akifumi Ogiwara
    • Organizer
      Photopolymerization Fundamentals 2015
    • Place of Presentation
      Boulder, Colorado, US
    • Year and Date
      2015-09-13
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] 液晶/高分子の光重合メゾ相分離および配向秩序形成と熱応答型調光素子への展開2015

    • Author(s)
      垣内田洋、吉村和記、荻原昭文
    • Organizer
      2015年日本液晶学会討論会
    • Place of Presentation
      東京工業大学すずかけキャンパス
    • Year and Date
      2015-09-07
    • Related Report
      2015 Research-status Report
  • [Book] 液晶のスマートウィンドウへの応用2018

    • Author(s)
      垣内田洋、荻原昭文
    • Total Pages
      7
    • Publisher
      日本液晶学会
    • Related Report
      2017 Annual Research Report
  • [Book] 液晶と高分子の複合材料による遮熱制御材料の開発2016

    • Author(s)
      垣内田洋
    • Total Pages
      4
    • Publisher
      化学工学誌
    • Related Report
      2016 Research-status Report

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Published: 2015-04-16   Modified: 2019-03-29  

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