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HERO ID
3857453
Reference Type
Journal Article
Title
Structural characterization of the [C(n)C(1)im][C4F9SO3] ionic liquid series: Alkyl versus perfluoroalkyl side chains
Author(s)
Shimizu, K; Freitas, AA; Canongia Lopes, JN
Year
2017
Is Peer Reviewed?
Yes
Journal
Journal of Molecular Liquids
ISSN:
0167-7322
Publisher
Elsevier B.V.
Volume
226
Page Numbers
28-34
Language
English
DOI
10.1016/j.molliq.2016.08.014
Web of Science Id
WOS:000392676600005
Abstract
This work represents an essential step towards the understanding at a molecular level of the bulk structure of ionic liquids (ILs) that exhibit both an hydrogenated and a perfluorinated alkyl side chain. Molecular Dynamics (MD) simulations were performed along the 1-alkyl-3-methylimidazolium perfluorobutylsulfonate homologous series, [C(n)C(1)im][C4F9SO3] (2 <= n <= 12) in order to study in a systematic way the effect on the bulk structure of the change of the ratios between polar and nonpolar moieties and between hydrogenated and fluorinated moieties. The MD trajectories were used to calculate global and partial structure factors, S(q), of each IL. The low-q peaks obtained from the deconvolution of the total S(q) functions were assigned to characteristic lengths of the polar network and non-polar domains, also computed via the appropriate pair radial distribution functions. Finally, several aggregation analyses were performed in order to emphasize the bicontinuous nature of the liquids and its systematic and complex evolution along the series. (C) 2016 Elsevier B.V. All rights reserved.
Keywords
Ionic liquids; Fluorinated alkyl chains; Nano structure; Molecular dynamics
Tags
PFAS
•
^Per- and Polyfluoroalkyl Substances (PFAS)
PFBS (375-73-5)
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WOS
•
PFBA
Protocol References
•
PFBS
WOS
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Scopus: April 2021
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