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

Research output: Contribution to journalArticleResearchpeer-review

18 Citations (Scopus)

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.

Original languageEnglish
Pages (from-to)5822-5827
Number of pages6
JournalNanoscale
Volume9
Issue number18
DOIs
Publication statusPublished - 14 May 2017
Externally publishedYes

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