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Role of medium-range crystalline order in the glass transition

Research Project

Project/Area Number 16K05510
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 InstitutionThe University of Tokyo

Principal Investigator

Kobayashi Mika  東京大学, 生産技術研究所, 特任助教 (00610867)

Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords液体 / 液体・液体転移 / ガラス転移 / 熱測定 / ガラス / 中距離構造 / 破壊 / 液体・ガラス転移 / ガラス形成物質 / エイジング / 時間スケール / 亀裂 / 特徴的長さ / 熱膨張係数 / 応力 / 結晶的中距離構造 / 原子間力顕微鏡 / フォースディスタンスカーブ
Outline of Final Research Achievements

Medium-range order in liquids seems to have an important role in phenomenon in liquids such as liquid-liquid transition (LLT). There have been a lot of reports on the indication of LLT. However, most of them are under debate and have not been proved yet. Triphenyl phosphite (TPP), a molecular liquid, exhibits an unknown amorphous state and there have been long discussions about the possibility of LLT related to this phenomenon. We succeeded to prove the existence of LLT of TPP by calorimetric measurements.

Academic Significance and Societal Importance of the Research Achievements

これまで、液体の構造には秩序がなく、単一成分液体の状態は1種類しかないとされてきた。一方、近年、液体が異なる構造をもつ複数の状態間を転移する、液体・液体相転移の存在を示唆する実験結果が報告されていたが、反論も多く、実証された例はほとんどなかった。本研究は、分子性液体において液体・液体転移が現実に存在することを明確に証明した。単一成分液体が複数の状態をとる液体・液体転移の存在は、液体の構造が無秩序であるとする従来の液体の概念を覆すものである。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (14 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (11 results) (of which Int'l Joint Research: 6 results)

  • [Int'l Joint Research] Universite Lyon 1(フランス)

    • Related Report
      2018 Research-status Report
  • [Journal Article] 超高速DSCを用いた液体・液体転移の研究2019

    • Author(s)
      小林美加、田中肇
    • Journal Title

      熱測定

      Volume: 46 Pages: 175-181

    • NAID

      40022066260

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The reversibility and first-order nature of liquid-liquid transition in a molecular liquid2016

    • Author(s)
      Mika Kobayashi and Hajime Tanaka
    • Journal Title

      Nature Communications

      Volume: 7 Issue: 1 Pages: 13438-13438

    • DOI

      10.1038/ncomms13438

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Experimental Investigation of Aging Kinetics in a Wide Temperature Range2019

    • Author(s)
      Mika Kobayashi and Hajime Tanaka
    • Organizer
      Gordon Research Conference - Chemistry and Physics of Liquids
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] How a Liquid Film Return to a Droplet?2018

    • Author(s)
      Mika Kobayashi and Hajime Tanaka
    • Organizer
      Juelich Soft Matter Days 2018
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] ポリマーブレンドの相分離2018

    • Author(s)
      小林美加、田中肇
    • Organizer
      日本物理学会 2018年秋季大会
    • Related Report
      2018 Research-status Report
  • [Presentation] ガラスの熱応力破壊現象2018

    • Author(s)
      小林美加、北井賢吾、田中肇
    • Organizer
      東京大学物性研究所短期研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] 撥水表面における高分子膜の挙動2018

    • Author(s)
      小林美加、田中肇
    • Organizer
      日本物理学会 第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 分子ガラスの冷却誘起破壊2018

    • Author(s)
      北井賢吾、小林美加、田中肇
    • Organizer
      日本物理学会 第73回年次大会
    • Related Report
      2017 Research-status Report
  • [Presentation] Calorimetric study of glass aging2017

    • Author(s)
      Mika Kobayashi and Hajime Tanaka
    • Organizer
      International workshop on Glasses and Related Nonequilibrium Systems
    • Place of Presentation
      大阪大学(大阪)
    • Year and Date
      2017-03-22
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] ポリマーブレンドの相分離の初期挙動2017

    • Author(s)
      小林美加、田中肇
    • Organizer
      日本物理学会 第72回年次大会
    • Place of Presentation
      大阪大学(大阪)
    • Year and Date
      2017-03-19
    • Related Report
      2016 Research-status Report
  • [Presentation] Aging kinetics and characteristic time scale of glass2017

    • Author(s)
      Mika Kobayashi and Hajime Tanaka
    • Organizer
      8th International Discussion Meeting on Relaxations in Complex Systems
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] The reversibility and first-order nature of liquid-liquid transition in a molecular liquid2017

    • Author(s)
      Mika Kobayashi and Hajime Tanaka
    • Organizer
      10th Liquid Matter Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] How a non-equilibrium system equilibrates?2016

    • Author(s)
      Mika Kobayashi and Hajime Tanaka
    • Organizer
      23rd International Symposium on Metastable, Amorphous and Nanostructured Materials
    • Place of Presentation
      奈良春日野国際フォーラム(奈良)
    • Year and Date
      2016-07-05
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2021-02-19  

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