A smart surface with switchable wettability by an ionic liquid

Li Chang; Hongliang Liu; Yi Ding; Jiajing Zhang; Li Li; Xiqi Zhang; Mingzhu Liu; Lei Jiang

doi:10.1039/C7NR00304H

A smart surface with switchable wettability by an ionic liquid†

Li Chang,^a Hongliang Liu,

*^b Yi Ding,^cd Jiajing Zhang,^b Li Li,^b Xiqi Zhang,

^b Mingzhu Liu*^a and Lei Jiang^b

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* Corresponding authors

^a State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metal Chemistry and Resources Utilization of Gansu Province and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
E-mail: mzliu@lzu.edu.cn

^b CAS Key Laboratory of Bio-inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
E-mail: liuhl@mail.ipc.ac.cn

^c Beijing National Laboratory of Molecular Sciences (BNLMS), Key Laboratory of Organic Solid, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China

^d University of Chinese Academy of Sciences, Beijing 100049, P. R. China

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.

This article is part of the themed collection: 2017 Nanoscale HOT Article Collection

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DOI: https://doi.org/10.1039/C7NR00304H
Article type: Paper
Submitted: 15 ربيع الثاني 1438
Accepted: 11 جمادى الأولى 1438
First published: 13 جمادى الأولى 1438

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Nanoscale, 2017,9, 5822-5827

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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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A smart surface with switchable wettability by an ionic liquid†

Abstract

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A smart surface with switchable wettability by an ionic liquid

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