ID | 115171 |
著者 |
Kizu, Ryotaro
Tokushima University
Hashimoto, Junpei
Tokushima University
Munekane, Nenji
Tokushima University
Miwa, Yohei
Gifu University
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資料タイプ |
学術雑誌論文
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抄録 | Radical polymerization of isobutyl vinyl ether (IBVE) was attempted with the aid of the interaction between the corresponding propagating radical and lithium cation (Li+). LiN(SO2CF3)2 (LiNTf2) and ester compounds, such as methyl methacrylate (MMA) and vinyl acetate (VAc), were added as a Li+ source and dissolving agent for LiNTf2, respectively. Homopolymers of cationically polymerizable IBVE were obtained despite the presence of radically polymerizable monomers such as MMA and VAc. Contrary to our expectation, the polymerization proceeded via not a radical mechanism but a cationic mechanism. However, this cationic polymerization was found to be unusual. In particular, the polymer yield increased with the polymerization temperature; successful polymerization was observed at 100 °C, whereas no polymerization occurred at lower temperatures such as at 0 °C. The behavior of the present system was therefore defined as “thermally induced cationic polymerization”. The mechanism of thermally induced cationic polymerization is still not clear, but it is assumed that the propagating cation is markedly stabilized through its interaction with the solvate ionic liquid formed between LiNTf2 and the Lewis base.
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掲載誌名 |
Polymer Chemistry
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ISSN | 17599962
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出版者 | The Royal Society of Chemistry
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巻 | 9
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号 | 12
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開始ページ | 1421
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終了ページ | 1429
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発行日 | 2018-03-05
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EDB ID | |
出版社版DOI | |
出版社版URL | |
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
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