Issue 8, 2010
From the journal:

Physical Chemistry Chemical Physics

Blending ionic liquids: how physico-chemical properties change†

Franca Castiglione,a   Guido Raos,a   Giovanni Battista Appetecchi,b   Maria Montanino,b   Stefano Passerini,bc   Margherita Moreno,a   Antonino Famularia  and  Andrea Mele*a  

* Corresponding authors

a Dipartimento di Chimica, Materiali e Ingegneria Chimica “G. Natta”, Politecnico di Milano, Via L. Mancinelli, 7, 20131 Milano, Italy
E-mail: andrea.mele@polimi.it
Fax: +39 02 2399 3180
Tel: +39 02 2399 3006

b ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, IDROCOMB, Via Anguillarese 301, Roma 00123, Italy

c Institute of Physical Chemistry, University of Muenster, Corrensstr. 28/30, D48149 Münster, Germany

Abstract

Ionic liquids offer the opportunity of tailoring their properties by changing the chemical structure of the cation and anion. Blending of two or more liquids adds a further dimension to this “chemical space”. Here we present the results of a study of three binary and one ternary mixture of the ionic liquids formed by the N-butyl-N-methylpyrrolidinium cation with bis(trifluoromethanesulfonyl) imide, bis(pentafluoroethanesulfonyl) imide and (trifluoromethanesulfonyl)(nonafluorobutanesulfonyl) imide. We have collected viscosity and NMR-based data on ionߝxion correlations (NOE) and diffusion (DOSY). We also attempt to establish a quantitative correlation between mixture and the corresponding pure liquid properties. We find that the binary mixture containing the two very different anions has an intriguing and somewhat anomalous behaviour.

Graphical abstract: Blending ionic liquids: how physico-chemical properties change

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Article information

DOI
https://doi.org/10.1039/B921816E
Article type
Paper
Submitted
20 Oct 2009
Accepted
17 Dec 2009
First published
18 Jan 2010

Phys. Chem. Chem. Phys., 2010,12, 1784-1792

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Blending ionic liquids: how physico-chemical properties change

F. Castiglione, G. Raos, G. Battista Appetecchi, M. Montanino, S. Passerini, M. Moreno, A. Famulari and A. Mele, Phys. Chem. Chem. Phys., 2010, 12, 1784 DOI: 10.1039/B921816E

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