A. Elbourne
Near surface properties of mixtures of propylammonium nitrate with n-alkanols 1. Nanostructure
Elbourne, A.; Cronshaw, S.; Voïtchovsky, K.; Warr, G.G.; Atkin, R.
Authors
S. Cronshaw
Professor Kislon Voitchovsky kislon.voitchovsky@durham.ac.uk
Professor
G.G. Warr
R. Atkin
Abstract
In situ amplitude modulated-atomic force microscopy (AM-AFM) has been used to probe the nanostructure of mixtures of propylammonium nitrate (PAN) with n-alkanols near a mica surface. PAN is a protic ionic liquid (IL) which has a bicontinuous sponge-like nanostructure of polar and apolar domains in the bulk, which becomes flatter near a solid surface. Mixtures of PAN with 1-butanol, 1-octanol, and 1-dodecanol at 10–70 vol% n-alkanol have been examined, along with each pure n-alkanol, to reveal the effect of composition and n-alkanol chain length. At low concentrations the butanol simply swells the PAN near-surface nanostructure, but at higher concentrations the nanostructure fragments. Octanol and dodecanol first lower the preferred curvature of the PAN near-surface nanostructure because, unlike n-butanol, their alkyl chains are too long to be accommodated alongside the PAN cations. At higher concentrations, octanol and dodecanol self-assemble into n-alkanol rich aggregates in a PAN rich matrix. The concentration at which aggregation first becomes apparent decreases with n-alkanol chain length.
Citation
Elbourne, A., Cronshaw, S., Voïtchovsky, K., Warr, G., & Atkin, R. (2015). Near surface properties of mixtures of propylammonium nitrate with n-alkanols 1. Nanostructure. Physical Chemistry Chemical Physics, 17(40), 26621-26628. https://doi.org/10.1039/c5cp04786b
Journal Article Type | Article |
---|---|
Acceptance Date | Sep 9, 2015 |
Publication Date | Oct 1, 2015 |
Deposit Date | Dec 17, 2015 |
Publicly Available Date | Sep 9, 2016 |
Journal | Physical Chemistry Chemical Physics |
Print ISSN | 1463-9076 |
Electronic ISSN | 1463-9084 |
Publisher | Royal Society of Chemistry |
Peer Reviewed | Peer Reviewed |
Volume | 17 |
Issue | 40 |
Pages | 26621-26628 |
DOI | https://doi.org/10.1039/c5cp04786b |
Public URL | https://durham-repository.worktribe.com/output/1424588 |
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