Journal
JOURNAL OF CO2 UTILIZATION
Volume 21, Issue -, Pages 238-246Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jcou.2017.07.017
Keywords
Dual amino-functionalized imidazolium ionic liquids; Synthesis; Carbon dioxide; Cyclic carbonates
Funding
- Shuang Yue thanks the National Science Foundation of China [21101084]
- Collaborative Innovation Centre of Applicative Technology of Clean Energy Resources in Fujian Province [2016-71]
- Liaoning Provincial Department of Education Innovation Team Projects [LT2015012]
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In the present study, the dual amino-functionalised imidazolium ionic liquids of 1-(3-aminopropyl)-3-butylimidazolium glutamic acid [APbim][Glu], 1-(3-aminopropyl)-3-butylimidazolium aspartic acid [APbim][Asp], 1( 3-aminopropyl)-3-butylimidazolium glycine [APbim][Gly], have been synthesized and characterized by H-1 NMR, C-13 NMR spectroscopy and IR spectroscopy. The synthesis of cyclic carbonate by cycloaddition reaction of CO2 and various epoxides catalyzed by dual amino-functionalized imidazolium ionic liquids, was carried out under no additional organic solvent required and halogen free condition. Simultaneously, the influence of anion type, catalyst dose, reaction temperature, reaction time and CO2 pressure on the yields of cyclic carbonates was examined. The dual amino-functionalized imidazolium ionic liquids possess good yields and selectivity and provide a reasonably environmentally benign and recycled chemical process.
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