Synthesis and Characterization of Quaternary Ammonium-based Ionic Liquids Containing an Alkyl Carbonate Group 


Vol. 28,  No. 12, pp. 2299-2302, Dec.  2007
10.5012/bkcs.2007.28.12.2299


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  Abstract

A series of quaternary ammonium-based ionic liquids (ILs) containing an alkyl carbonate group on the cation was first prepared and their physical and electrochemical properties including density, viscosity, thermal stability, electrochemical stability, and ionic conductivity were reported. These ILs exhibited wide electrochemical windows of at least 5.0 V and relatively high conductivities. In contrast to dialkyl-substituted ionic liquids, the ILs with an alkyl carbonate group on the cation showed much smaller drop in conductivities when mixed with a lithium salt, due to the interaction of lithium ions with carbonate groups. Upon interaction with a Li salt, the carbonyl stretching frequency of the carbonate group shifted to a lower frequency whereas the peak associated with C-O single bond moved to a higher frequency.

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  Cite this article

[IEEE Style]

D. Q. Nguyen, J. H. Oh, C. S. Kim, S. W. Kim, H. Kim, H. Lee, H. S. Kim, "Synthesis and Characterization of Quaternary Ammonium-based Ionic Liquids Containing an Alkyl Carbonate Group," Bulletin of the Korean Chemical Society, vol. 28, no. 12, pp. 2299-2302, 2007. DOI: 10.5012/bkcs.2007.28.12.2299.

[ACM Style]

Dinh Quan Nguyen, Ji Hee Oh, Chang Soo Kim, Seung Wook Kim, Honggon Kim, Hyunjoo Lee, and Hoon Sik Kim. 2007. Synthesis and Characterization of Quaternary Ammonium-based Ionic Liquids Containing an Alkyl Carbonate Group. Bulletin of the Korean Chemical Society, 28, 12, (2007), 2299-2302. DOI: 10.5012/bkcs.2007.28.12.2299.

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ISSN(Print) 0253-2964
ISSN(Online) 1229-5949