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生物质化学工程 ›› 2010, Vol. 44 ›› Issue (5): 21-24.

• 论文 • 上一篇    下一篇

超声波辅助合成氯化1-甲基-3-苄基咪唑离子液体及其对木材的溶解

卢泽湘1, 范立维2, 郭文真1, 陈翠霞1, 黄彪1   

  1. 1. 福建农林大学, 材料工程学院, 福建 福州 350002;2. 福建农林大学, 资源与环境学院, 福建 福州 350002
  • 收稿日期:2010-06-02 修回日期:1900-01-01 出版日期:2010-09-30 发布日期:2010-09-30

Ultrasonic-assisted Synthesis of 1-Methyl-3-benzylimidazliu Chloride Ionic Liquid and Its Solubility for Wood

LU Ze-xiang1, FAN Li-wei2, GUO Wen-zhen1, CHEN Cui-xia1, HUANG Biao1   

  1. 1. College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou 350002, China;2. College of Resource and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • Received:2010-06-02 Revised:1900-01-01 Online:2010-09-30 Published:2010-09-30

摘要: 以超声波辅助法合成了氯化1-甲基-3-苄基咪唑离子液体([Bzmim]Cl),并对其结构进行了紫外光谱(UV)和傅里叶红外光谱(FT-IR)表征。考察了反应条件对Cl收率的影响,实验结果表明超声波强化了离子液体的合成过程,能明显缩短合成时间。Cl较优的合成条件为超声波功率100 W、反应温度80℃、反应时间1 h、氯苄与1-甲基咪唑物质的量之比值1.1,此时离子液体的收率约为99.8%,纯度为98%。探讨了不同温度下离子液体[Bzmim]Cl对杉木木屑的溶解性能,结果表明活化后的杉木木屑在120℃时溶解度约为5.4。

关键词: 离子液体, 超声波, 合成, 木材, 溶解

Abstract: 1-Methyl-3-benzylimidazliu chloride ionic liquid ([Bzmim]Cl) was synthesized by ultrasonic assistance, and its structure was characterized by UV and FT-IR spectra. The influences of the reaction conditions on the yield of [Bzmim]Cl were investigated, and the experimental results showed that the application of ultrasonic wave intensified the synthesis process of ionic liquids and reduced the synthesis time. The optimum synthesis condition was obtained as follows: power of ultrasonic wave 100 W, reaction temperature 80℃, reaction time 1 h and the molar ratio value of benzyl chloride to 1-methylimidazole were 1.1. The yield and purity of the ionic liquid under the optimum condition were 99.8% and 98 %, respectively. The dissolution of the Chinese fir sawdust activated in the ionic liquid was discussed under different temperature, and the solubility of the sawdust is 5.4 at 120℃.

Key words: ionic liquid, ultrasonic wave, synthesis, wood, dissolution

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