Issue 19, 2020

Building a smart surface with converse temperature-dependent wettability based on poly(acrylamide-co-acrylonitrile)

Abstract

A smart surface with converse temperature-dependent (CTD) wettability was fabricated from an upper critical solution temperature-type (UCST-type) poly(acrylamide-co-acrylonitrile) (P(AAm-co-AN)) copolymer. The obtained surface exhibits a remarkable and reversible hydrophobic–hydrophilic transition depending on temperature with a high response rate. The static water contact angle of the surface decreases from 103° ± 2° to 60° ± 1° as the temperature increases from 30 °C to 80 °C. Further, the wettability of the UCST-type surface shows a positive linear relationship between wettability and temperature. This study for the first time provides an UCST-type smart surface with wettability that decreases by over 35° as the temperature increases by only 20 °C.

Graphical abstract: Building a smart surface with converse temperature-dependent wettability based on poly(acrylamide-co-acrylonitrile)

Supplementary files

Article information

Article type
Communication
Submitted
06 Dec 2019
Accepted
04 Feb 2020
First published
04 Feb 2020

Chem. Commun., 2020,56, 2837-2840

Building a smart surface with converse temperature-dependent wettability based on poly(acrylamide-co-acrylonitrile)

L. Chen, T. Yang, Y. Niu, X. Mu, Y. Gong, Y. Feng, N. F. de Rooij, Y. Wang, H. Li and G. Zhou, Chem. Commun., 2020, 56, 2837 DOI: 10.1039/C9CC09479B

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