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Preparation and application of organic lustrous crystals as an alternative to metallic paints

Research Project

Project/Area Number 16K06753
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Composite materials/Surface and interface engineering
Research InstitutionTokyo University of Science

Principal Investigator

Kondo Yukishige  東京理科大学, 工学部工業化学科, 教授 (70277276)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords金色 / アゾベンゼン / 結晶 / ポリエチレングリコール / 金属光沢 / 銀色 / スチルベン / 色材 / 有機結晶 / 自己組織化 / 構造・機能材料 / 結晶成長
Outline of Final Research Achievements

We have found that an azobenzene compound can form gold-colored crystals. This is the world's first finding of electrically insulating gold crystals. In addition to the compound, we have found that three additional compounds can give gold-colored crystals. However these crystals are all brittle, and therefore they cannot apply to free surfaces.
In this study, we have investigated on flexible gold-colored crystals. Novel azobenzene compounds having a polyethylene glycol (PEG) chain have been synthesized. One of them forms a flexible gold-colored sheet. We can fold it into a crane.

Academic Significance and Societal Importance of the Research Achievements

現在、金色光沢塗膜を得るためには、メタリック塗料・インクが用いられているが、その光沢を表現するため、銅や真鍮、アルミの粉体が塗料に含有されている。メタリック塗料・インクの代替として、我々の金色光沢シートを利用することができれば、1) 電波通信機器の金属光沢塗装(絶縁性のため電波を透過するため)、2) 金属アレルギーを惹起しない金色光沢材料の製造(真の金属を含まないため)、3) 金属光沢塗装される輸送機器の燃費向上や二酸化炭素排出低減(メタリック塗料による塗膜に比べ比重が小さいため)を可能にすると期待され、その社会的意義は大きいと考えられる。

Report

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

    (16 results)

All 2018 2017 2016 Other

All Journal Article (6 results) (of which Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 4 results) Remarks (1 results)

  • [Journal Article] Preparation of Hollow Polystyrene Particles and Microcapsules by Radical Polymerization of Janus Droplets Consisting of Hydrocarbon and Fluorocarbon Oils2018

    • Author(s)
      Yutaka Takahashi, Mari Kano, Natsu Yanagisawa, Yukishige Kondo
    • Journal Title

      Jove-Journal of Visualized Experiments

      Volume: 131 Issue: 131

    • DOI

      10.3791/56922

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Application of Bio-Based Organic Acid, D-Glyceric Acid: Synthesis and Interfacial Property of Dihexanoyl Glycerate2017

    • Author(s)
      Shun Sato, Shota Nagata, Dai Kitamoto, Yutaka Takahashi, Yukishige Kondo, Hiroshi Habe
    • Journal Title

      Journal of Environmental Biotechnology

      Volume: 17 Pages: 69-72

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Photochemical migration of liquid column in a glass tube2017

    • Author(s)
      Masakazu Muto, Yuya Ayako, Ken Yamamoto, Makoto Yamamoto, Yukishige Kondo, Masahiro Motosuke
    • Journal Title

      European Physical Journal-Special Topics

      Volume: 226 Issue: 6 Pages: 1199-1205

    • DOI

      10.1140/epjst/e2016-60217-y

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Fabrication of hollow polymer particles using emulsions of hydrocarbon oil/fluorocarbon oil/aqueous surfactant solution2017

    • Author(s)
      Mari Kano, Natsu Yanagisawa, Yutaka Takahashi, Yukishige Kondo
    • Journal Title

      Journal of Fluorine Chemistry

      Volume: 197 Pages: 34-41

    • DOI

      10.1016/j.jfluchem.2017.02.008

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Photoinduced formation of threadlike micelles from mixtures of a cationic surfactant and a stilbene amphiphile2016

    • Author(s)
      Yutaka Takahashi, Mai Kishimoto, Yukishige Kondo
    • Journal Title

      Journal of Colloid and Interface Science

      Volume: 470 Pages: 250-256

    • DOI

      10.1016/j.jcis.2016.02.053

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Development and performance of a magnetic ionic liquid for use in vacuum-compatible non-contact seals2016

    • Author(s)
      Takao Okabe, Daichi Moritaka, Masaaki Miyatakea, Yukishige Kondo, Shinya Sasaki,Shigeka Yoshimoto
    • Journal Title

      PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY

      Volume: 47 Pages: 97-103

    • DOI

      10.1016/j.precisioneng.2016.07.010

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Presentation] Preparation of flexible silver-colored organic crystals2018

    • Author(s)
      K. Yamada, Y. Takahashi, Y. Kondo
    • Organizer
      256th ACS National Meeting & Exposition
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 折り紙様金色光沢有機シートの創製2018

    • Author(s)
      見米峻太朗, 齋藤典生, 高橋 裕, 近藤行成
    • Organizer
      2018年度色材研究発表会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Preparation of silver-lustrous organic crystals having a benzanilide skeleton2018

    • Author(s)
      J. Migii, N. Saito, Y. Takahashi, Y. Kondo
    • Organizer
      The 32nd Conference of European Colloid and Interface Society
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ベンズアニリド骨格を有する銀色光沢有機結晶の作製2017

    • Author(s)
      右井樹基、高橋 裕、近藤行成
    • Organizer
      第68回コロイドおよび界面化学討論会
    • Related Report
      2017 Research-status Report
  • [Presentation] Discovery of metal-lustrous low-molecular-weight organic crystals2017

    • Author(s)
      Yukishige Kondo
    • Organizer
      254th ACS National Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Discovery of metal-lustrous low-molecular-weight organic crystals2017

    • Author(s)
      Yukishige Kondo
    • Organizer
      7th International Colloids Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] アゾベンゼン系有機結晶が示す金色光沢の発現機構2016

    • Author(s)
      小松原裕樹・髙橋裕・近藤行成
    • Organizer
      2016年度色材研究発表会
    • Place of Presentation
      大阪大学 大阪大学会館
    • Year and Date
      2016-10-14
    • Related Report
      2016 Research-status Report
  • [Presentation] 銀色光沢を有する低分子有機結晶の作製2016

    • Author(s)
      小野允嵩・髙橋裕・近藤行成
    • Organizer
      2016年度色材研究発表会
    • Place of Presentation
      大阪大学 大阪大学会館
    • Year and Date
      2016-10-14
    • Related Report
      2016 Research-status Report
  • [Presentation] アゾベンゼン誘導体から形成される金色光沢結晶の光沢発現機構2016

    • Author(s)
      小松原裕樹・高橋裕・近藤行成
    • Organizer
      第67回コロイドおよび界面化学討論会
    • Place of Presentation
      北海道教育大学旭川校
    • Year and Date
      2016-09-22
    • Related Report
      2016 Research-status Report
  • [Remarks] Research-KONDO LAB

    • URL

      http://www.kondo-lab.org/research-en.html

    • Related Report
      2017 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

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