|
|
JAIST Repository >
c. マテリアルサイエンス研究科・マテリアルサイエンス系 >
c10. 学術雑誌論文等 >
c10-1. 雑誌掲載論文 >
このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/15744
|
| タイトル: | Enhancement of glass transition temperature for poly(methyl methacrylate) by salt |
| 著者: | Ito, Asae
Phulkerd, Panitha
Ayerdurai, Viknasvarri
Soga, Mizuki
Courtoux, Antoine
Miyagawa, Azusa
Yamaguchi, Masayuki |
| キーワード: | PMMA
Tg
segmental motion
dynamic tensile modulus
oscillatory shear modulus |
| 発行日: | 2018-06-05 |
| 出版者: | Springer Nature |
| 誌名: | Polymer Journal |
| 巻: | 50 |
| 開始ページ: | 857 |
| 終了ページ: | 863 |
| DOI: | 10.1038/s41428-018-0080-4 |
| 抄録: | We investigated the effects of two metal salts, lithium trifluoromethanesulfonate (LiCF_3SO_3) and lithium bromide (LiBr), on the glass transition temperature (Tg) of poly(methyl methacrylate) (PMMA). Both LiCF_3SO_3 and LiBr greatly enhanced the T_g of PMMA under dry conditions. However, once the sample films were exposed to humidity, the PMMA containing LiCF_3SO_3 absorbed a large amount of water, which acts as a plasticizer. As a result, the T_g shifted to a lower temperature, which limits the utility of this polymer in industrial applications. In contrast, the T_g of PMMA containing LiBr was minimally affected by the absorption of water. This phenomenon can be explained by the ion–dipole interactions with the small number of dissociated lithium cations. |
| Rights: | This is the author's version of the work. Copyright (C) 2018 The Society of Polymer Science. Asae Ito, Panitha Phulkerd, Viknasvarri Ayerdurai, Mizuki Soga, Antoine Courtoux, Azusa Miyagawa & Masayuki Yamaguchi, Polymer Journal, 50, 2018, 857-863. http://dx.doi.org/10.1038/s41428-018-0080-4 |
| URI: | http://hdl.handle.net/10119/15744 |
| 資料タイプ: | author |
| 出現コレクション: | c10-1. 雑誌掲載論文 (Journal Articles)
|
このアイテムのファイル:
| ファイル |
記述 |
サイズ | 形式 |
|---|
| 24257.pdf | | 877Kb | Adobe PDF | 見る/開く |
|
当システムに保管されているアイテムはすべて著作権により保護されています。
|
