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低取代醋酸纤维素的均相合成及其水溶性
引用本文:曹妍,李会泉,张懿,张军,何嘉松.低取代醋酸纤维素的均相合成及其水溶性[J].高等学校化学学报,2008,29(10):2115-2117.
作者姓名:曹妍  李会泉  张懿  张军  何嘉松
作者单位:[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
基金项目:国家重点基础研究发展计划(973计划)
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
收稿时间:2008-06-11

Synthesis of Cellulose Acetates with Low Degree of Substituent and Their Water Solubility
CAO Yan,LI Hui-Quan,ZHANG Yi,ZHANG Jun,HE Jia-Song.Synthesis of Cellulose Acetates with Low Degree of Substituent and Their Water Solubility[J].Chemical Research In Chinese Universities,2008,29(10):2115-2117.
Authors:CAO Yan  LI Hui-Quan  ZHANG Yi  ZHANG Jun  HE Jia-Song
Institution:Key Laboratory of Green Process Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; ;Key Laboratory of Engineering Plastics(KLEP), Institute of Chemistry, Chinese Academy of Sciences(CAS), Beijing 100190, China
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.
Keywords:Cellulose acetate  Low degree of substituent  Homogeneous acetylation  Distribution of substituent  Water solubility
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