| 纤维素氧化体系的研究进展 |
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| 引用本文： | 李琳,赵帅,胡红旗.纤维素氧化体系的研究进展[J].纤维素科学与技术,2009,17(3):59-64. |
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| 作者姓名： | 李琳 赵帅 胡红旗 |
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| 作者单位： | 1. 青岛科技大学,椽塑材料与工程教育部重点实验室,山东,青岛,266042
2. 青岛科技大学,椽塑材料与工程教育部重点实验室,山东,青岛,266042;中国科学院广州化学研究所纤维素化学重点实验室,广东,广州,510650 |
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| 基金项目： | 中国科学院纤维素化学重点实验室访问学者开放基金项目 |
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| 摘 要： | 概述了纤维素的选择性氧化及其氧化体系的研究进展,主要介绍了2,2,6,6-四甲基哌啶-1-氧自由基(TEMPO)类复合氧化体系氧化纤维素的降解机理,针对该降解机理提出抑制降解的基本方法。与其他氧化体系相比,过碘酸和过碘酸盐对纤维素C2、C3位仲羟基的选择性氧化能力极强,TEMPO系列氮氧基类氧化体系对纤维素C6位伯羟基的选择性氧化能力极强,但纤维素在各个氧化体系中的降解非常剧烈,纤维素在各个氧化体系中的降解机理有所不同。
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| 关 键 词： | 氧化纤维素 选择性氧化 氧化降解 |
Development in Oxidative System of Cellulose |
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| LI Lin,ZHAO Shuai,HU Hong-qi.Development in Oxidative System of Cellulose[J].Journal of Cellulose Science and Technology,2009,17(3):59-64. |
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| Authors: | LI Lin ZHAO Shuai HU Hong-qi |
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| Affiliation: | LI Lin, ZHAO Shuai, HU Hong-qi. ( 1. Key Laboratory of Rubber-Plastics, Ministry of Education, Oingdao University of Science and Technology, Oingdao 266042, China; 2. Key Laboratory of Cellulose and Lignocellulosics Chemistry, Guangzhou Institute of Chemistry, Chinese Academy of Sciences, Guangzhou 510650, China) |
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| Abstract: | In this paper, selective oxidation of cellulose and oxidative systems were researched. The degradation mechanism of cellulose in 2,2,6,6-tetrarnethylpiperidine-1-oxyl（TEMPO）- mediated oxidation was concluded mainly. Directing at this degradation mechanism, some methods which can inhibit degradation of cellulose were researched. Comparing with other oxidative systems, periodic acid and periodate have a selectively skyscraping oxidation in second hydroxyls on positions C2, C3, turning to the difficult primary alcohol on position C6, selective oxidation can be achieved by TEMPO-mediated oxidation. But degradation of cellulose resulting from oxidative systems was very serious. But the degradation mechanism in every oxidative system was different. |
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| Keywords: | oxidized cellulose selective oxidation oxidative degradation |
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