Synthesis of Functionalized Ionic Liquids Based on Benzimidazolium and Their Properties

doi:10.3969/j.issn.0251-0790.2012.01.013

Abstract

Abstract: A series of functionalized ionic liquids based on benzimidazolium cation was synthesized and cha-racterized by ¹H NMR, ¹³C NMR, IR and ESI-MS. The thermal stability, electrical conductivity, the solubility in various solvents and other properties were studied. The results showed that the ionic liquids had no weight loss under 280 ℃, indicating they have a good thermal stability. When the concentration of the ionic liquids in the aqueous solution is 1×10^-3 mol/L, increasing the conductivity is almost proportional to the temperature increases, miscible with most organic solvents, solubility with the increase of solvent polarity.

Key words: Functionalized ionic liquids, Benzimidazole, Solubility, Thermal stability, Conductivity

CLC Number:

O621.21

TrendMD:

WANG Bin, LIU Chen-Jiang, WANG Ji-De, LEI Zhen-Kai, HU Dong-Lin. Synthesis of Functionalized Ionic Liquids Based on Benzimidazolium and Their Properties[J]. Chem. J. Chinese Universities, 2012, 33(01): 76.

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