| ID | 115975 |
| 著者 |
Miki, Hitomi
Tokushima University
妹尾, 真紀子
Tokushima University
|
| キーワード | N-Isopropylacrylamide
Hydrogen bond
Stereospecific radical polymerization
radical polymerization
stereospecific polymerization
syndiotactic polymer
NMR
|
| 資料タイプ |
学術雑誌論文
|
| 抄録 | Radical polymerization of N-isopropylacrylamide (NIPAAm) in toluene was investigated in the presence of hexamethylphosphoramide (HMPA). We succeeded in directly preparing syndiotactic-rich poly(NIPAAm), the syndiotacticity of which (r = 70%) is the highest among those of radically-prepared poly(NIPAAm)s so far reported, by lowering polymerization temperature to –60°C in the presence of a twofold amount of HMPA. The NMR analysis revealed that the induced syndiotactic-specificity was ascribed to 1:1 complex formation between NIPAAm and HMPA. Furthermore, thermodynamic analysis described that the induced syndiotactic-specificity was enthalpically achieved.
|
| 掲載誌名 |
Polymer
|
| ISSN | 00323861
|
| cat書誌ID | AA11537383
|
| 出版者 | Elsevier
|
| 巻 | 46
|
| 号 | 11
|
| 開始ページ | 3693
|
| 終了ページ | 3699
|
| 発行日 | 2005-04-07
|
| 権利情報 | © 2005. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
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| EDB ID | |
| 出版社版DOI | |
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| フルテキストファイル | |
| 言語 |
eng
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| 著者版フラグ |
著者版
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| 部局 |
理工学系
|
