4.7 Article

High-intensity ultrasound irradiated modification of sugarcane bagasse cellulose in an ionic liquid

期刊

INDUSTRIAL CROPS AND PRODUCTS
卷 35, 期 1, 页码 135-139

出版社

ELSEVIER
DOI: 10.1016/j.indcrop.2011.06.023

关键词

Sugarcane bagasse; Cellulose; Ultrasound; Ionic liquid; Glutaration

资金

  1. National Natural Science Foundation of China [20776052]
  2. Science and Technology Council of Guangdong [2009A030209002]
  3. Central Universities [2011ZM0105]

向作者/读者索取更多资源

This current work is concerned with the glutarylation of sugarcane bagasse cellulose in ionic liquid 1-butyl-3-methylimidazolium chloride by ultrasound irradiation without catalyst. The degree of substitution ranging from 0.22 to 1.20 was obtained in one-step homogeneous modification, which increased with ultrasound irradiation time, temperature, and the molar ratio of glutaric anhydride/anhydroglucose unit in cellulose. The structural characterization of the glutarylated cellulose was carried out by using FT-IR and CP/MAS C-13 NMR and the results showed that the glutarylation reaction occurred. The thermal stability of the glutarylated cellulose decreased upon chemical modification. (C) 2011 Elsevier B.V. All rights reserved.

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