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Calorimetric and polarometric study of relaxation in crystals, glasses and glassy crystals

Research Project

Project/Area Number 03453010
Research Category

Grant-in-Aid for General Scientific Research (B)

Allocation TypeSingle-year Grants
Research Field 物理化学一般
Research InstitutionOsaka University

Principal Investigator

MATSUO Takasuke  Department of Chemistry, Faculty of Science, Osaka University. Associate Professor, 理学部, 助教授 (00028185)

Co-Investigator(Kenkyū-buntansha) YAMAMURO Osamu  Department of Chemistry, Faculty of Science, Osaka University, Assistant Profess, 理学部, 助手 (20200777)
Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥6,700,000 (Direct Cost: ¥6,700,000)
Fiscal Year 1992: ¥2,100,000 (Direct Cost: ¥2,100,000)
Fiscal Year 1991: ¥4,600,000 (Direct Cost: ¥4,600,000)
KeywordsGlass transition / Enthalpy relaxation / Polarization relaxation / 1-Propanol / Isocyanocyclehexane / Fullerene / 電気分極緩和 / 熱測定 / 電流測定 / 熱容量 / 電気分極カロリメ-タ- / 緩和現象
Research Abstract

An adiabatic calorimeter with electrodes built in the sample cell has been constructed. By application of external potential, the sample can be cooled in an electric field. At sufficiently low temperature, the sample retains its polarization for a long time even if the electric field has been turned off. When the sample thus polarized is heated it looses its polarization at or near the glass transition. The depolarization is accompanied by flow of current. The polarization relaxation time is experimentally determined by recording the depolarization current. At the same time, the enthalpy relaxation time can be measured by the recording the temperature change associated with the relaxation. The simultaneous measurement of the two quantities allows discussion of the molecular reorientational motion to be carried out into a deeper level than is possible with measurement of one quantity. This method has been applied to a liquid glass of propyl alcohol and a glassy crystalline state of isocyanocyclohexane. The results turned out to be very encouraging because it offers a experimental method by which one can measure the polarization relaxation and enthalpy relaxation on the identical sample having exactly the same prehistory, a very important, and otherwise difficult-to-realize requirement in the study of relaxation phenomena.
A fullerene C60 was investigated by adiabatic calorimetry and turned out to be a glassy crystal, with the glass transition temperature og 86 K. The activation energy of molecular reorientation is 21 kJ/mol/.

Report

(3 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] Kume et al.: "A strong isotope effect in the phase transition behavior of ...." Physica. 180. 594-597 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Sekii et al.: "Calorimetric study of phase transitions in thiourea clathrate compound ...." J.Thermal Analysis. 38. 1861-1872 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Kuratomi et al.: "Heat capacity and transition phenomena of structure I and II trimethylene ...." J. Thermal Analysis. 38. 1921-1937 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Matsuo et al.: "The heat capacity of solid C_<60>." Solid St.Commun.83. 711-716 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Suga et al.: "Thermodynamic study of Ice and clathrate hydrates." Pure & Appl.Chem.64. 17-26 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Fukai et al.: "Calorimetric study of the deuteration effect on the phase transition behavior ...." Solid St.Commun.83. 545-549 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 岩本等編 執筆一部松尾: "大学院無機化学上" 講談社サイエンティフィク, 264 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Y.Kume, Y.Miyazaki, T.Matsuo and H.Suga: "A strong isotope effect in the phase transition behavior of ammonium hexachlorotellurate." Physica. 180(1). 594-597 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] M.Sekii, T.Mtasuo and H.Suga: "Calorimetric study of phase transitions in the thiourea clathrate compound of 1,1,2,2-tetrachloroethane." J. Thermal Analysis. 38(8). 1961-1972 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] N.Kuratomi, O.Yamamuro, T.Matsuo and H.Suga: "Heat Capacity and phase transition phenomena of structure I and II trimethylene oxide clathrate hydrates." J. Thermal Analysis. 38(8). 1921-1937 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] T.Matsuo, H.Suga, W.I.F.David, R.M.Ibberson, R.Bernier, A.Zahab, A.Rassat and A.Dworkin: "The heat capacity of Solid C_<60>." Solid. State Commun.83(9). 711-716 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] H.Suga, T.Matsuo and O.Yamamuro: "Thermodynamics of Ice and clathrate hydrates." Pure & Apple Chem.64(1). 17-26 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Fukai et al.: "Calorimetric study of the deutreation effect on the phase transition behavior of rubidium hydrogen selenate." Solid State Commun.84(5). 545-549 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] Kume et al.: "A strong isotope effect in the phase transition behavior of ‥‥" Physica. 180. 594-597 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Sekii et al.: "Calorimetric study of phase transitions in thiourea clathrate compound ‥‥" J.Thermal Analysis. 38. 1861-72 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Kuratomi et al.: "Heat capacity and transition phenomena of structure I and II trimethylene ‥‥" J.Thermal Analysis. 38. 1921-37 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Matsuo et al.: "The heat capacity of solid C_<60>." Solid St.Commun.83. 711-16 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Suga et al.: "Thermodynamic study of Ice and clathrate hydrates." Pure & Appl.Chem.64. 17-26 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] Fukai et al.: "Calorimetric study of the deuteration effect on the phase transition behavior ‥‥" Solid St.Commun.83. 545-49 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] 岩本 等 編 執筆一部松尾: "大学院無機化学上" 講談社サイエンティフィク, 264 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] ISAO KISHIMOTO: "Phase transition and glaso transitions in isocyanocyclohexane studied by a polarocalorimeter" Proceedings of the Japan Academy. 67. 66-71 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] Noriko ONODAーYAMAMURO: "Thermal,electric and dielectric Properties of CH_3NH_3SnBr_3 at low temperatures" Journal of chemical thermodynamics. 23. 987-999 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 深井 真理: "水素結合性結晶M_3H(XO_4)_2(M=K,Rb,Cs;X=S,Se)の物性(I)" 第27回熱測定討論会講演要旨集Solid State Commun.27. 238-239 (1991)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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