イミダゾール基を含むポリスチレン系高分子電解質による加水分解反応
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- 川邊 浩
- 千葉工業大学工学部工業化学科
書誌事項
- タイトル別名
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- Polyelectrolytes containing imidazolyl groups prepared from polystyrene for hydrolysis of phenyl esters.
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説明
Polyelectrolytes containing imidazolyl groups, which are soluble in water, have been prepared by treating chloromethylated polystyrene first with triethylamine to convert a part of chloromethyl groups to quaternary ammonium groups and then with histamine or histidine. Hydrolyses of several phenyl esters in the presence of the polyelectrolytes were much faster than those in the presence of small molecules containing an imidazolyl group such as histamine, histidine, or imidazole. The hydrolyses catalyzed by the polyelectrolytes coformed to Michaelis-Menten kinetics, except for the case of 3-acetoxy-N, N, N-trimethylanilinium iodide. The higher rate in the presence of the polyelectrolytes was due to the lowering of free energy by the formation of associated complexes between the polyelectrolytes and the substrate. The driving force of the complex formation was substantially hydrophobic interaction; however, hydrogen bonding and electrostatic attraction are suggested in some cases.
収録刊行物
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- 高分子論文集
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高分子論文集 45 (2), 177-184, 1988
公益社団法人 高分子学会
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詳細情報 詳細情報について
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- CRID
- 1390282681499049600
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- NII論文ID
- 130003837125
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- ISSN
- 18815685
- 03862186
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可