First-Order Phase Transition in a Nylon 66 Crystal
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概要
- 論文の詳細を見る
Electron diffraction patterns and specific heat at constant pressure (C_p) are re-corded in a temperature range between approximately 300 K and 500 K for a nylon 66 crystal precipitated at 418 K from 0.05-wt% 1,4-butanediol solution. The C_p is found to take a maximum value at 468 K (T_t) under 0. 1 MPa (atmospheric pressure). Three reflections of 100, 010 and 110 can be observed independently in an electron diffraction pattern, all of which show symmetrical single-peak profiles at temperatures lower than T_t, while 010 and 110 profiles are found to be asymmetric or to have shoulders in the smaller-diffraction-angle region at T_t. These results give the first evidence that two crystalline phases coexist or that first-order phase transition occurs at T_t in the nylon 66 crystal.
- 社団法人日本物理学会の論文
- 1993-02-15
著者
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Itoh T
Department Of Macromolecular Science And Engineering Graduate School Of Science And Technology Kyoto
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伊藤 孝
京都工芸繊維大学 繊維学部
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ITOH Takashi
Department of Applied Chemistry, Graduate School of Engineering, Tohoku University
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KONISHI Takashi
Department of Polymer Science and Engineering, Faculty of Textile Science, Kyoto Institute of Techno
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Konishi T
Asahi Chemical Ind. Co. Ltd. Shizuoka Jpn
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Konishi Takashi
Department Of Cardiology Otsu Red Cross Hospital
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Konishi Takashi
Faculty Of Textile Science Kyoto Institute Of Technology
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Konishi T
Kyoto Inst. Technol. Kyoto Jpn
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