Branched isomeric 1,2,3-triazolium-based ionic liquids: New insight into structure-property relationships

M. Lartey, J. Meyer-Ilse, J. D. Watkins, E. A. Roth, S. Bowser, V. A. Kusuma, K. Damodaran, X. Zhou, M. Haranczyk, E. Albenze, D. R. Luebke, D. Hopkinson, J. B. Kortright, H. B. Nulwala

Research output: Contribution to journalArticlepeer-review

16 Citations (Scopus)

Abstract

A series of four isomeric 1,2,3-triazolium-based ionic liquids (ILs) with vary degree of branching were synthesized and characterized to investigate the effect of ion branching on thermal and physical properties of the resulting IL. It was found that increased branching led to a higher ionicity and higher viscosity. The thermal properties were also altered significantly and spectral changes in the near edge X-ray absorption fine structure (NEXAFS) spectra show that branching affects intermolecular interaction. While the ionicity and viscosity varying linearly with branching, the MDSC and NEXAFS measurements show that the cation shape has a stronger influence on the melting temperature and absorptive properties than the number of branched alkyl substituents.

Original languageEnglish
Pages (from-to)29834-29843
Number of pages10
JournalPhysical Chemistry Chemical Physics
Volume17
Issue number44
DOIs
Publication statusPublished - 2015
Externally publishedYes

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