Issue 18, 2017

A smart surface with switchable wettability by an ionic liquid

Abstract

Smart control of surface wettability by ionic liquids (ILs) is significant for designing IL-related intelligent materials and devices. Herein, we present mixed molecular brushes comprised of poly(phenylethyl methacrylate) and 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (PPhEtMA-co-PFDMS) grafted surfaces that are capable of dynamically regulating 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIm][NTf2]) wettability. 1H NMR and quartz crystal microbalance characterization demonstrate that the wettability changes result from a temperature-dominated cation–π interaction between [EMIm][NTf2] and PPhEtMA-co-PFDMS brushes.

Graphical abstract: A smart surface with switchable wettability by an ionic liquid

Supplementary files

Article information

Article type
Paper
Submitted
13 Jan 2017
Accepted
08 Feb 2017
First published
10 Feb 2017

Nanoscale, 2017,9, 5822-5827

A smart surface with switchable wettability by an ionic liquid

L. Chang, H. Liu, Y. Ding, J. Zhang, L. Li, X. Zhang, M. Liu and L. Jiang, Nanoscale, 2017, 9, 5822 DOI: 10.1039/C7NR00304H

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