高等学校化学学报

高等学校化学学报

• 研究快报 • 上一篇    下一篇

低取代醋酸纤维素的均相合成及其水溶性

曹妍1, 李会泉1, 张懿1, 张军2, 何嘉松2   

    1. 中国科学院过程工程研究所, 绿色过程工程重点实验室, 北京 100190;
    2. 中国科学院化学研究所, 工程塑料重点实验室, 北京 100190
  • 收稿日期:2008-06-11 修回日期:1900-01-01 出版日期:2008-10-10 发布日期:2008-10-10
  • 通讯作者: 张军

Synthesis of Cellulose Acetates with Low Degree of Substituent and Their Water Solubility

CAO Yan1, LI Hui-Quan1*, ZHANG Yi1, ZHANG Jun2*, HE Jia-Song2   

    1. Key Laboratory of Green Process Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China;
    2. Key Laboratory of Engineering Plastics(KLEP), Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing 100190, China
  • Received:2008-06-11 Revised:1900-01-01 Online:2008-10-10 Published:2008-10-10
  • Contact: ZHANG Jun

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被引次数

42

摘要： 本文在离子液体中进行低取代度CA的均相合成, 得到了一系列CMA, 部分合成的CMA在水中具有良好的溶解性.

关键词: 醋酸纤维素, 低取代度, 均相乙酰化, 取代基分布, 水溶性

Abstract: Cellulose acetates with low degree of substituent(DS) were homogeneously synthesized in an ionic liquid, 1-allyl-3-methyl-imidazolium chloride(AmimC1). Under mild reaction conditions, cellulose monoacetates(CMA) with the DS in a range from 0.34 to 1.60 were obtained. NMR analysis shows that the distribution of acetyl moieties among the three OH groups of anhydroglucose unit is C6C3>C2 for the synthesized CMA. The water solubility measurement shows that the CMA samples with the DS ranging from 0.65 to 1.06 are readily dissolved in water. The relationship between the structure and water solubility of CMA was briefly discussed.

Key words:

Cellulose acetate, Low degree of substituent, Homogeneous acetylation, Distribution of substituent, Water solubility

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