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Glass-Forming Photoconductive Organic Compounds. I. Phase Change and Single Crystal Growth of 1,3-Diphenyl-5-(p-Chlorophenyl)-Pyrazoline

  • K. Kato
  • M. Yokoyama
  • Y. Shirota
  • H. Mikawa
  • M. Sorai
  • H. Suga
  • S. Seki

Abstract

It is well known that linear polymers regarded as amorphous solids generally keep a stable glassy state for quite a long time at around room temperature or above. Some low-molecular-weight organic compounds have also been reported to form stable glasses at around room temperature or above, where either the three-dimensional hydrogen-bonding force or only van der Waals force is operative. A branched, propeller-like hydrocarbon, e.g., 1,3,5-tri-α-naphthylbenzene, is a typical example of a van der Waals glass former, which is reported to form a glass spontaneously on cooling with a glass transition temperature at about 70°C (1).

Keywords

Differential Thermal Analysis Glassy State Seed Crystal Single Crystal Growth Large Single Crystal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    D.J. Plazek and J.H. Magill, J.Chem.Phys., 45, 3038 (1966).ADSCrossRefGoogle Scholar
  2. 2.
    S. Katsuragi, K. Okamoto, R. Matsuyama, S. Kusabayashi, and H. Mikawa, unpublished results; for pyrazoline derivatives, see Japanese Patent Application Disclosure No. 5466 of 1959, Kalle and Company, A.G.Google Scholar
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    For examples, G. Weiser, J.Appl.Phy., 43, 5028 (1972).ADSCrossRefGoogle Scholar
  4. W.D. Gill, J.Appl.Phy., 43, 5033 (1972); see also the papers by W. D. Gill and J. Mort in this volume, p. 137 and p. 127.ADSCrossRefGoogle Scholar
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    M. Sorai and S. Seki, Bull.Chem.Soc.Japan, 44, 2887 (1971) and references cited therein.CrossRefGoogle Scholar
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    F. Bolletta and P.G.D. Marco, La ricerca scientifica, 38, 1062 (1968).Google Scholar

Copyright information

© Plenum Press, New York 1974

Authors and Affiliations

  • K. Kato
    • 1
  • M. Yokoyama
    • 1
  • Y. Shirota
    • 1
  • H. Mikawa
    • 1
  • M. Sorai
    • 2
  • H. Suga
    • 2
  • S. Seki
    • 2
  1. 1.Department of ChemistryFaculty of ScienceToyonaka, OsakaJapan
  2. 2.Department of Applied Chemistry, Faculty of EngineeringOsaka UniversityYamadakami, Suita, OsakaJapan

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