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タイトル: | Strain- and temperature-induced polymorphism of poly(dimethylsiloxane) |
著者: | Tosaka, Masatoshi https://orcid.org/0000-0001-8016-8329 (unconfirmed) Noda, Miki Ito, Kazuta Senoo, Kazunobu Aoyama, Koki Ohta, Noboru |
著者名の別形: | 登阪, 雅聡 |
キーワード: | Strain-induced crystallization Conformation Wide-angle X-ray diffraction Network polymer Skeletal structure Silicone rubber |
発行日: | Nov-2013 |
出版者: | Springer Berlin Heidelberg |
誌名: | Colloid and Polymer Science |
巻: | 291 |
号: | 11 |
開始ページ: | 2719 |
終了ページ: | 2724 |
抄録: | Phase behavior of silica-filled poly(dimethylsiloxane) (PDMS) network was investigated by wide-angle X-ray diffraction (WAXD) under various strain ratio between room temperature and −100 °C, and anomalous polymorphic behavior was discovered. At room temperature, when sufficient strain was applied, PDMS network was found to transform into the mesomorphic phase from which only a pair of sharp equatorial reflections and faint meridional scattering were obtained in the WAXD pattern. At low temperature, PDMS network crystallized into one of three different crystal forms according to strain ratio. These crystal forms were denoted as α, transient, and β forms in the descending order of corresponding strain ratio. The mesomorphic phase at room temperature transformed into the crystalline α form by reducing temperature. There was an anomalous feature about the transition of the crystalline forms that the position of reflections in the WAXD pattern changed continuously and reversibly with strain between the α and the β forms through the transient form, while keeping the diffraction angles almost unchanged. |
著作権等: | The final publication is available at Springer via http://dx.doi.org/10.1007/s00396-013-3044-4. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/192986 |
DOI(出版社版): | 10.1007/s00396-013-3044-4 |
出現コレクション: | 学術雑誌掲載論文等 |
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