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Issue 80, 2015
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A thermophysical and structural characterization of ionic liquids with alkyl and perfluoroalkyl side chains

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Abstract

This work represents an essential step towards the understanding of the dynamics and thermodynamic characteristics of a novel family of ionic liquids, namely fluorinated ionic liquids based on the combination of 1-alkyl-3-methylimidazolium cations with perfluoroalkylsulfonates or perfluoroalkylcarboxylates anions. The so far scarce information about these fluids constitutes a limiting factor for their potential applications. In this work, we provide detailed evidence on the influence of hydrogenated and fluorinated alkyl chain lengths in the final characteristics of the fluorinated ionic liquids. Different properties, namely, melting point, decomposition temperature, density, dynamic viscosity, ionic conductivity and refractive index, were determined and the experimental results were discussed taking into account the influence of the length of the hydrogenated and fluorinated alkyl chains. Molecular dynamic simulations were also performed to study the nanoscale structure of these novel compounds.

Graphical abstract: A thermophysical and structural characterization of ionic liquids with alkyl and perfluoroalkyl side chains

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Supplementary files

Article information


Submitted
13 May 2015
Accepted
23 Jul 2015
First published
24 Jul 2015

RSC Adv., 2015,5, 65337-65350
Article type
Paper
Author version available

A thermophysical and structural characterization of ionic liquids with alkyl and perfluoroalkyl side chains

N. S. M. Vieira, P. M. Reis, K. Shimizu, O. A. Cortes, I. M. Marrucho, J. M. M. Araújo, J. M. S. S. Esperança, J. N. C. Lopes, A. B. Pereiro and L. P. N. Rebelo, RSC Adv., 2015, 5, 65337
DOI: 10.1039/C5RA13869H

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