[1]周雪玲,银建中.二烷基咪唑离子液体的合成、纯化及表征[J].应用科技,2015,42(06):72-76.[doi:10.11991/yykj.201503014]
 ZHOU Xueling,YIN Jianzhong.Synthesis, purification and characterization of dialkyl imidazole ionic liquid[J].Applied science and technology,2015,42(06):72-76.[doi:10.11991/yykj.201503014]
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二烷基咪唑离子液体的合成、纯化及表征(/HTML)
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《应用科技》[ISSN:1009-671X/CN:23-1191/U]

卷:
第42卷
期数:
2015年06期
页码:
72-76
栏目:
材料与化学
出版日期:
2015-12-05

文章信息/Info

Title:
Synthesis, purification and characterization of dialkyl imidazole ionic liquid
作者:
周雪玲 银建中
大连理工大学 化工机械学院, 辽宁 大连 116024
Author(s):
ZHOU Xueling YIN Jianzhong
School of Chemical Machinery, Dalian University of Technology, Dalian 116024, China
关键词:
离子液体合成纯化表征二烷基咪唑
Keywords:
ionic liquidsynthesispurificationcharacterizationdialkyl imidazole
分类号:
TQ425.6
DOI:
10.11991/yykj.201503014
文献标志码:
A
摘要:
利用两步法合成了2种应用广泛且具有代表性的的离子液体[BMIM]BF4和[BMIM]PF6,重点讨论了其纯化以及纯度分析过程,发现用两步法制备离子液体,中间体的纯化十分重要。文中用结晶法制备纯度达99%的中间体,对于亲水性离子液体的提纯,采用有机溶剂萃取法,找到了合适的有机溶剂、水及离子液体的配比(质量比为67:1:11),得到较高产率和纯度的目标离子液体[BMIM]BF4。利用核磁氢谱对离子液体的结构进行了证实,并对离子液体的黏度、溶解性2种物性进行了测定。
Abstract:
The ionic liquids [BMIM] BF4and [BMIM] PF6 which are used widely and representatively, were synthesized by a two-step method. This paper focused on purity and its purity analysis, finding that the purification of intermediate is very important when using the two-step method to make ionic liquid. In this paper, the intermediate with 99% purity was prepared by a crystallization method, and organic solvent extraction method was used for the purification of hydrophilic ionic liquid. It was found that a higher yield and purity of the target ionic liquid [BMIM] BF4was obtained when using the suitable organic solvent, water and an ionic liquid ratio (mass ratio is 67:1:11). The structure of ionic liquids was confirmed by H nuclear magnetic resonance(HNMR), and the viscosity and solubility of the ionic liquid were determined.

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备注/Memo

备注/Memo:
收稿日期:2015-3-18;改回日期:。
基金项目:国家自然科学基金资助项目(21376045).
作者简介:周雪玲(1990-),女,硕士研究生;银建中(1964-),男,教授,博士.
通讯作者:银建中,E-mail:jzyin@dlut.edu.cn.
更新日期/Last Update: 2016-01-07