Phase Transitions in Nylon 6Y Crystals
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概要
- 論文の詳細を見る
Temperature dependence of crystal structure and specific heat (C.) is tneasured at normalpressure for solution-grown or as-synthesized nylon 6Y (Y:2,6,8,9, 10, 12) as well as nylons6, 46 and 39. The first-order phase transition occurs in the as-synthesized nylon 62 crystal.Anomaly in C. is observed for all even-even nylon 6Y, while any anorrtaly in C. does not appearin nylons 46 and 6. Strch restrlts indicate that hexarnethylene moiety plays an intrinsic roleto cause the phase transition. The phase transition behavior tends to turn into the contintnotusstructural change with increasing the ntrtnber of Y in even-even nylon 6Y crystals, which suggeststhat thermal motion in the Y region expands the intertnolecular distance to reduce the transitionpoint to a temperature below 470 K and snuear the phase-transition appearance.
- 社団法人日本物理学会の論文
- 1997-09-15
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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ITOH Takashi
Department of Applied Chemistry, Graduate School of Engineering, Tohoku University
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HASHIMOTO Masato
Department of Macromolecular Science and Engineering, Graduate School of Science and Technology, Kyo
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ISHIKAWA Hiroya
Department of Polymer Science and Engineering, Faculty of Textile Science, Kyoto Institute of Techno
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伊藤 孝至
名古屋大学エコトピア科学研究所融合プロジェクト部門
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Hashimoto M
Department Of Macromolecular Science And Engineering Graduate School Of Science And Technology Kyoto
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Hashimoto M
Department Of Polymer Science And Engineering Faculty Of Textile Science Kyoto Institute Of Technolo
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Itoh T
Tokyo Inst. Technol. Yokohama Jpn
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Hashimoto Masato
Department Of Applied Physics Tokai University
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Hayakawa I
Laboratory Of Food Process Engineering Division Of Food Biotechnology Department Of Bioscience And B
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伊藤 孝至
名古屋大学エコトピア科学研究所
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Itoh T
Mitsubishi Heavy Ind. Ltd. Yokohama Jpn
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Ishikawa Hiroya
Laboratory Of Food Analysis Division Of Food Biotechnology Department Of Bioscience And Biotechnolog
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Ishikawa Hiroya
Department Of Bioscience And Biotechnology Faculty Of Agriculture Graduate School Kyushu University
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Ishikawa Hiroya
Department Of Bioscience And Biotechnology Faculty Of Agriculture Graduate School Of Kyushu Universi
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