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Concentration fluctuation in alcohol-water mixture : Is the structural aspect of poly-disperse mass-fractal universal?

Research Project

Project/Area Number 17540379
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Biophysics/Chemical physics
Research InstitutionNiigata University

Principal Investigator

MISAWA Masakatsu  Niigata University, Institute of Science and Technology, Professor, 自然科学系, 教授 (80005941)

Co-Investigator(Kenkyū-buntansha) MARUYAMA Kenji  Niigata University, Institute of Science and Technology, Associate Professor, 自然科学系, 助教授 (40240767)
OTOMO Toshiya  High Energy Accelerator Research Organization, Associate Professor, 大強度陽子加速器計画推進部, 助教授 (90270397)
Project Period (FY) 2005 – 2006
Project Status Completed (Fiscal Year 2006)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2006: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 2005: ¥2,100,000 (Direct Cost: ¥2,100,000)
KeywordsAlcohol-water mixtures / Concentration fluctuation / Visualization / Neutron scattering / Reverse Monte Carlo analysis / Fractal / Complicated liquids / Voids / マスフラクタル / カルコゲン融体
Research Abstract

The mesoscale structure of alcohol-water mixtures is characterized by concentration fluctuation or micro-heterogeneity. However the structural details of the concentration fluctuation and the molecular origin of the fluctuation are still obscure. More detailed structural studies on the mesoscale structure of the alcohol mixtures are needed. We reported previously that the mesoscale structure of the 1-propanol-water mixtures was characterized by poly-disperse mass-fractals by means of a newly developed visualization-analysis of small angle neutron scattering intensity. The purpose of this study is to examine whether this structural aspect of the poly-disperse mass-fractals is commonly observed in other alcohol-water mixtures. For this purpose we have carried out small angle neutron scattering measurement on tert-butyl alcohol-water. Concentration fluctuation of the mixture has been analyzed in terms of fractal. Structure of the concentration fluctuation has been visualized by means of a … More large-scale reverse Monte Carlo technique. Percolation analysis of the visualized structure shows that the concentration fluctuation is characterized by poly-disperse mass fractals, which has been found for 1-propano-water mixture. These findings strongly suggest that the poly-disperse mass-fractal is a common structural characteristic in various alcohol-water mixtures.
We have also applied the visualization technique to liquid Rb-Se and Bi-Br mixtures in order to understand the short-range and intermediate-range structures of these liquids. It was found that there were many voids in the visualized model structure of Rb-Se mixtures. From the void analysis using Delaunay simplices it has been revealed that the observed pre-peak corresponds to a pre-peak in the concentration-concentration structure factor due to the chemically ordered packing of the voids and Se chains in the structure.
We emphasize that the visualization of the mesoscale structure is essentially important to understand the complexity in various liquid mixtures. Less

Report

(3 results)
  • 2006 Annual Research Report   Final Research Report Summary
  • 2005 Annual Research Report
  • Research Products

    (22 results)

All 2007 2006 2005 Other

All Journal Article (22 results)

  • [Journal Article] A visualized analysis of small-angle neutron scattering intensity : concentration fluctuation in alcohol-water mixtures2007

    • Author(s)
      M.Misawa, T.Sato, A.Onozuka, K.Maruyama, K.Mori, S.Suzuki, T.Otomo
    • Journal Title

      J. Appl. Cryst. 40(in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Hydrophobic hydration and anomalous excess partial molar volume of ter-butyl alcohol-water mixture studied by quasi-elastic neutron scattering2007

    • Author(s)
      M.Nakada, O.Yamamuro, K.Maruyama, M.Misawa
    • Journal Title

      J. Phys. Soc. Jpn. 76(in press)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Short- and Intermediate-Range Order in Liquid Bi-BiBr3 Mixtures : Importance of Voids2007

    • Author(s)
      Kenji Maruyama, Hirohisa Endo, Hideoki Hoshino
    • Journal Title

      J. Phys. Soc. Jpn. 76

      Pages: 24601-24609

    • NAID

      130005296709

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] A visualized analysis of small-angle neutron scattering intensity : concentration fluctuation in alcohol-water mixtures2007

    • Author(s)
      M.Misawa, T.Sato, A.Onozuka, K.Maruyama, K.Mori, S.Suzuki, T.Otomo
    • Journal Title

      J.Appl.Cryst. 40

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Hydrophobic hydration, anoalous excess partial molar volume of ter-butyl alcohol-water mixture studied by quasi-elastic neutron scattering2007

    • Author(s)
      M.Nakada, O.Yamamuro, K.Maruyama, M.Misawa
    • Journal Title

      J.Phys.Soc.Jpn. 76

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Short-and Intermediate-Range Order in Liquid Bi-BiBr3 Mixtures : Importance of Voids2007

    • Author(s)
      Kenji Maruyama, Hirohisa Endo, Hideoki Hoshino
    • Journal Title

      J.Phys.Soc.Jpn. 76

      Pages: 24601-9

    • NAID

      130005296709

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] A visualized analysis of small-angle neutron scattering intensity concentration fluctuation in alcohol-water-mixtures2007

    • Author(s)
      M.Misawa, T.Sato, A.Onozuka, K.Maruyama, K.Mori, S.Suzuki, T.Otomo
    • Journal Title

      J. Appl. Cryst. 40(in press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Hydrophobic hydration and ano, alous excess partial molar volume of ter-butyl alcohol-water mixture studied by quasi-elastic neutron scattering2007

    • Author(s)
      M.Nakada, O.Yamamuro, K.Maruyama, M.Misawa
    • Journal Title

      J. Phys. Soc. Jpn. 76(in press)

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Hydration of alcohol clusters in 1-propanol-water mixture studied by quasielastic neutron scattering and an interpretation of anomalous excess partial molar volume2006

    • Author(s)
      M.Misawa, Y.Inamura, D.Hosaka, O.Yamamuro
    • Journal Title

      J. Chem. Phys. 125

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] 液体Rb-Se混合系におけるvoidと「ゆらぎ構造」2006

    • Author(s)
      丸山健二, 遠藤裕久, 星野英興
    • Journal Title

      波紋 16・2

      Pages: 110-115

    • NAID

      130001998445

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Annual Research Report 2006 Final Research Report Summary
  • [Journal Article] Hydration of alcohol clusters in 1-propanol-water mixture studied by quasielastic neutron scattering and an interpretation of anomalous excess partial molar volume2006

    • Author(s)
      M.Misawa, Y.Inamura, D.Hosaka, O.Yamamuro
    • Journal Title

      J.Chem.Phys. 125

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Structures of liquid Rb-Se mixtures : void and fluctuation2006

    • Author(s)
      Kenji Maruyama, Hirohisa Endo, Hideoki Hoshino
    • Journal Title

      Hamon 16(2)

      Pages: 110-115

    • NAID

      130001998445

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Hydration of alcohol clusters in 1-propanol-water mixture studied by quasielastic neutron scattering and an interoretation of anomalous escess partial molar volume2006

    • Author(s)
      M.Misawa, Y.Inamura, D.Hosaka, O.Yamamuro
    • Journal Title

      J. Chem. Phys. 125

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Short- and Intermediate-Range Structures of Liquid Rb-Se Mixtures2005

    • Author(s)
      K.Maruyama, H.Endo, H.Hoshino
    • Journal Title

      J. Phys. Soc. Jpn. 74・12

      Pages: 3213-3220

    • NAID

      110002975242

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Local structure of liquid Rb-Se mixtures : chain- and interstitial void structure near the miscibility gap2005

    • Author(s)
      K.Maruyama, H.Hoshino, H.Endo, M.Yamazaki, T.Miyanaga
    • Journal Title

      J. Phys. : Condens. Matter 17・45

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Local structure of liquid Rb-Se mixtures : chain-and interstitial void-structure near the miscibility gap2005

    • Author(s)
      K Maruyama, H Hoshino, H Endo, M Yamazaki, T Miyanaga
    • Journal Title

      J.Phys. : Condens.Matter 17

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Short-and Intermediate-Range Structures of Liquid Rb-Se Mixtures2005

    • Author(s)
      Kenji Maruyama, Hirohisa Endo, Hideoki Hoshino
    • Journal Title

      J.Phys.Soc.Jpn. 74

      Pages: 3213-3220

    • NAID

      110002975242

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] short- and Intermediate-Range Structures of Liquid Rb-Se Mixtures2005

    • Author(s)
      K.Maruyama, H.Endo, H.Hoshino
    • Journal Title

      J.Phys.Soc.Japan 74・12

      Pages: 3213-3220

    • NAID

      110002975242

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Local structure of Liquid Rb-Se mixtures : chain- and interstitial void-structure near the miscibility gap2005

    • Author(s)
      K.Maruyama, H.Hoshino, H.Endo, M.Yamazaki, T.Miyanaga
    • Journal Title

      J.Phys : Condens.Matter 17・45

    • Related Report
      2005 Annual Research Report
  • [Journal Article] Local structure of liquid Rb-Se mixtures near the miscibility gap

    • Author(s)
      K.Maruyama, H.Hoshino, H.Ikemoto, T.Miyanaga, H.Endo
    • Journal Title

      J. Non-Cryst. Solids (accepted)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Local structure of liquid Rb-Se mixtures near the miscibility gap

    • Author(s)
      K.Maruyama, H.Hoshino, H.Ikemoto, T.Miyanaga, H.Endo
    • Journal Title

      J.Non-Cryst.Solids (accepted)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2006 Final Research Report Summary
  • [Journal Article] Local structure of liquid Rb-Se mixtures near the miscibility gap

    • Author(s)
      K.Maruyama, H.Hoshino, H.Ikemoto, T.Miyanaga, H.Endo
    • Journal Title

      J. Non-Cryst. Solids (accepted)

    • Related Report
      2006 Annual Research Report

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Published: 2005-04-01   Modified: 2016-04-21  

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