Selective Polymerization of 5,7-Dodecadiyne-1,12-Diol Bis[Phenylcarbamate] (TCDU) Crystals and Thermochromism of the Polymerized Crystals : Condensed Matter: Electronic Properties, etc.

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概要

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• The crystals of 5,7-dodecadiyne-1,12-diol bis[phenylcarbamate] (TCDU) with the two different structures, TCDU-1 and TCDU-2, were grown from TCDU-acetone solution by controlling the rate of evaporation of solvent. The monomer crystals with the two different structures polyrnerize selectively into different phases of polymer crystals: TCDU-1 into B-phase, and TCDU-2 into A-phase. Studies of thermally-induced phase transition of polymerized crystals have revealed a reversible A-B phase transition at 393 K in A-phase crystals polymerized from TCDU-2. However, it has also been shown that the phase transition is not induced thermally in B-phase crystals polymerized from TCDU-1 at any temperatures from 7 to 450 K. These results are discussed on the basis of the current structural model of A and B phases of polydiacetylene crystals.

• 社団法人日本物理学会の論文
• 2001-06-15

著者

• Kondoh Takafumi

  Department Of Physics Nagoya University:(present) Dept. Of Intelligent Materials Engineering Osaka C

• Tanimura K

  The Institute Of Scientific And Industrial Research Osaka University

• ITOH Chihiro

  Department of Physics, Nagoya University

• TANIMURA Katsumi

  The Institute of Scientific and Industrial Research, Osaka University

• Itoh Chihiro

  Department Of Physics Nagoya University:(present) Dept. Of Material Science And Chemistry Wakayama U

関連論文

• Time-Resolved Spectroscopic Study of Excitonic Luminescence Centers in RbI Crystals
• Selective Polymerization of 5,7-Dodecadiyne-1,12-Diol Bis[Phenylcarbamate] (TCDU) Crystals and Thermochromism of the Polymerized Crystals : Condensed Matter: Electronic Properties, etc.
• Photo-Induced Dimer-Diradical Formation in Diacetylene Crystals at Low Temperatures

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