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An investigation of the factors controlling the chemical structures of lignin dehydrogenation polymers
http://hdl.handle.net/10076/0002000287
http://hdl.handle.net/10076/0002000287af86b8c5-d5ee-4779-9cfb-7840d43ad3f0
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
2023JA0001.pdf (1.8 MB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 公開日 | 2024-01-27 | |||||||||
| タイトル | ||||||||||
| タイトル | An investigation of the factors controlling the chemical structures of lignin dehydrogenation polymers | |||||||||
| 言語 | en | |||||||||
| 言語 | ||||||||||
| 言語 | eng | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | dehydrogenation polymer | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | HSQC NMR | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | lignin | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | size exclusion chromatography | |||||||||
| キーワード | ||||||||||
| 主題Scheme | Other | |||||||||
| 主題 | thioacidolysis | |||||||||
| 資源タイプ | ||||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||||
| 資源タイプ | journal article | |||||||||
| 著者 |
Tokunaga Yuki
× Tokunaga Yuki
× Watanabe Takashi
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| 抄録 | ||||||||||
| 内容記述タイプ | Abstract | |||||||||
| 内容記述 | Dehydrogenation polymer (DHP) is widely used as a model polymer of lignin. The chemical structure of DHP is highly affected by the synthesis conditions; however, the factors affecting DHP structure are not comprehensively understood. In this study, guaiacyl DHPs were synthesized to investigate the effects of reaction scale, pH, polymerization-enzyme activity, reaction media containing organic solvent, and differences between Zutropf (ZT) and Zulauf (ZL) modes on DHP properties. The DHPs were structurally characterized by size exclusion chromatography, 1H-13C HSQC NMR, and thioacidolysis with and without Raney nickel desulfuration. In ZT mode, smaller reaction scale significantly increased β-O-4 content, and β-O-4 formation was negatively correlated with the dose of polymerization-enzyme, horseradish peroxidase. Acidic condition (pH 4.0) in succinate buffer also increased the β-O-4 content of the DHP, although the α position of the DHP was acylated by the incorporation of succinic acid. DHPs prepared at pH 9.0 had high β-1 contents and low β-5 contents, while the reaction in 20% 1,4-dioxane markedly increased the molecular weight of the DHP. A systematic approach controlling the molecular structure of DHPs would increase their value as models for native and isolated lignins. | |||||||||
| 書誌情報 |
en : Holzforschung 巻 77, 号 1, p. 51-62, 発行日 2023 |
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| ISSN | ||||||||||
| 収録物識別子タイプ | EISSN | |||||||||
| 収録物識別子 | 1437-434X | |||||||||
| DOI | ||||||||||
| 関連タイプ | isVersionOf | |||||||||
| 識別子タイプ | DOI | |||||||||
| 関連識別子 | 10.1515/hf-2022-0129 | |||||||||
| フォーマット | ||||||||||
| 内容記述タイプ | Other | |||||||||
| 内容記述 | application/pdf | |||||||||
| 著者版フラグ | ||||||||||
| 出版タイプ | AM | |||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||
| 出版者 | ||||||||||
| 出版者 | DEG RUYTER | |||||||||
| 資源タイプ（三重大） | ||||||||||
| 値 | Journal Article / 学術雑誌論文 | |||||||||
