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Molecular Relaxations of a Branched Pely (oxyethylene) Network Polymer
http://hdl.handle.net/10131/5809
http://hdl.handle.net/10131/5809cf3cf263-a150-4075-b8de-7b4848bd718f
名前 / ファイル | ライセンス | アクション |
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watanabemasayoshi.pdf (681.3 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2009-12-16 | |||||
タイトル | ||||||
タイトル | Molecular Relaxations of a Branched Pely (oxyethylene) Network Polymer | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題 | Branched Network Polymer | |||||
キーワード | ||||||
主題 | Dielectric Relaxation | |||||
キーワード | ||||||
主題 | 13C Nuclear Magnetic Resonance | |||||
キーワード | ||||||
主題 | Dynamic Mechanical Analysis | |||||
キーワード | ||||||
主題 | Main Chain Motion | |||||
キーワード | ||||||
主題 | Side Chain Motion | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
Ichikawa, Kimio
× Ichikawa, Kimio× Dickinson, L. Charles× Macknight, William J.× Watanabe, Masayoshi |
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著者(ヨミ) | ||||||
識別子Scheme | WEKO | |||||
識別子 | 19251 | |||||
識別子Scheme | e-Rad | |||||
識別子URI | https://kaken.nii.ac.jp/ja/search/?qm=60158657 | |||||
識別子 | 60158657 | |||||
姓名 | ワタナベ, マサヨシ | |||||
著者別名 | ||||||
識別子Scheme | WEKO | |||||
識別子 | 28538 | |||||
姓名 | 渡辺, 正義 | |||||
著者所属 | ||||||
Fujinomiya Lab. Fuji Photo Film Co., Ltd. | ||||||
著者所属 | ||||||
Polymer Science and Engineering Department, University of Massachusetts | ||||||
著者所属 | ||||||
Polymer Science and Engineering Department, University of Massachusetts | ||||||
著者所属 | ||||||
Department of Chemistry, Yokohama National University | ||||||
著者所属 | ||||||
工学部 物質工学科 | ||||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Dielectric relaxation measurements and 13C NMR measurements were carried out on an amorphous network polymer derived from poly[2-(2-methoxyethoxy)ethyl glycidyl ether]triol with 2,4-toluenediisocyanate. The main relaxation and the higher frequency relaxation were observed in the dielectric spectra. The main relaxation was found to be symmetrical and broad with a half width of 5 decades in a frequency domain. The higher frequency process is considered to be the γ process of ethylene oxide chains due to the local twisting mode. The temperature dependence of T_1 and T_1ρ of the ethylene oxide carbon showed minima and it is clearly shown that the relaxation times obtained from the dielectric measurements correspond to the relaxation time obtained from the T_1ρ measurements of the ethylene oxide carbon. The temperature dependence of T_1 was well described assuming the Cole-Cole spectral density function with the shape factor β obtained for the dielectric main relaxation. The 13C magnetization decay of the ethylene oxide carbon in the rotating frame was found to be given by two components (slow and fast components) below the relaxation temperature. The broad dielectric relaxation and the decay profiles of the ethylene oxide carbon are discussed in terms of the branched structure of the network. | |||||
書誌情報 |
横浜国立大学機器分析センター年報 巻 2, p. 14-18, 発行日 1997-10 |
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書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12211315 | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 横浜国立大学機器分析センター |