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2001 Fiscal Year Final Research Report Summary

Investigation on the-Properties of Ill-Condensed Molecular

Research Project

Project/Area Number 09304066
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field 機能・物性・材料
Research InstitutionOsaka University

Principal Investigator

MATSUO Takasuke  OSAKA UNIVERSITY, GRADUATE SCHOOL OF SCIENCE, PROFESSOR, 大学院・理学研究科, 教授 (00028185)

Co-Investigator(Kenkyū-buntansha) YAMAMURO Osamu  GRADUATE SCHOOL OF SCIENCE, OSAKA UNIVERSITY, ASSISTANT PROFESSOR, 大学院・理学研究科, 講師 (20200777)
INABA Akira  GRADUATE SCHOOL OF SCIENCE, OSAKA UNIVERSITY, ASSOCIATE PROFESSOR, 大学院・理学研究科, 助教授 (30135652)
Project Period (FY) 1997 – 2000
KeywordsGlassy state / Relaxation / Enthalpy relaxation / Volume relaxation / Molecular glass / Amorphous ice / Glassy crystal / Vapor-deposited amorphous state
Research Abstract

1. An adiabatic calorimeter in which the sample part can be detached from the cryostat has been designed and constructed. A sample immersed directly in liquid nitrogen is transferred into the cryostat for calorimetric measurement. Examination on several substances showed the high accuracy and precision of the apparatus equivalent to or exceeding the best adiabatic calorimeter.
2. An adiabatic calorimeter incorporating a dilatometer has been constructed and used for a glass transition study of polystyrene.
3.An apparatus has been constructed for preparation of amorphous substances by deposition of vapor onto a cold wall kept at 5 K. The apparatus mounted in a neutron beam has been successfully operated for neutron scattering experiment on vapor-deposited amorphous ice and other substances that cannot be amorphized by supercooling of the liquid. The neutron diffraction showed strong small angle scattering that provides evidence for heterogeneity of the amorphous state.
4. Glassy hydrocarbons and alcohols have been prepared in the calorimeter and their configurational entropies determined accurately. Dielectric relaxation times characterized by non-Arrhenius temperature dependence have been interpreted consistently by the Adam-Gibbs theory utilizing the entropy data. The entropy values also gave the size of Cooperatively Rearranging Regions as a function of temperature.

  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] 山室: "Enthalpy relaxation of glossy gly cerolprepared"J. Non-cryst. Solids. 235. 517-521 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 高原: "Development of a diabatic celorimeter for"Rev. Sci. Instrum.. 69. 185-192 (1998)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 松尾: "Equili breim and non-equilibrium transitions"Thermochem. Acta. 330. 155-165 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 山室: "Neutron Scattering Study of Boson Peak"J. Phys. Chem. Solids. 60. 1537-1539 (1999)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 山室: "Boson Peaks of glassy mono-and poly alcohols"J. Phys. : Condensed Matter. 12. 5143-5154 (2000)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 山室: "Low energy excitations of vapor deposiled amorpheus"J. Chem. Phys.. (in press). (2001)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Osamu Yamamuro, Yasuko Ohishi, Makoto Nishizawa and Takasuke Matsuo: "Enthalpy relaxation of glassy glycerol prepared by rapid quenching"J. Non-Cryst. Solids,. 235-237. 517-521 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] S. Takahara, 0. Yamamuro, M. Ishikawa T. Matsuo and H. Suga: "Development of an adiabatic calorimeter for simultaneous measurement of enthalpy and volume under high pressure"Rev. Sci. Instrum.. 69. 185-192 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Takasuke Matsuo and Osamu Yamamuro: "Equilibrium and non-equilibrium transitions studied by adiabatic calorimetry"Proc. 5^<th> Laehnwitz Seminar on Calorimetry ; Thermochim. Acta. 330. 155-165 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] O. Yamamuro, I. Tsukushi, T. Kanaya and T. Matsuo: "Neutron scattering study of boson peak in glassy 3-methylpentane"J. Phys. Chem. Solids. 60. 1537-1539 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] O. Yamamuro, K. Harabe, T. Matsuo, K. Takeda, I. Tsukushi and T. Kanaya: "Boson peaks of glassy mono- and polyalcohols studied by inelastic neutron scattering"J. Phys. : Condensed Matter. 12. 5143-5154 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] O. Yamamuro, Y. Madokoro, H. Yamasaki, T.Matsuo, I. Tsukushi and K. Takeda: "Low energy excitations of vapor-deposited amorphous ice and its annealing and methanol-doping effects studied inelastic neutron"J. Chem. Phys. Sept. 2001 issue. (in press).

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] T. Matsuo, N. Tanaka, M. Fukai, O. Yamamuro, A. Inaba and M. Ichikawa: "Extended least-squares analysis of heat capacities incorporating the effect of phase transitions and its application"J. Chem. Phys. (submitted to).

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      「研究成果報告書概要(欧文)」より

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Published: 2003-09-17  

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