Superhydrophobic surfaces with low and high adhesion made from mixed (hydrocarbon and fluorocarbon) 3,4-propylenedioxythiophene monomers

Janwa El-Maiss, Thierry Darmanin, Elisabeth Taffin De Givenchy, Sonia Amigoni, Julian Eastoe, Masanobu Sagisaka, Frédéric Guittard*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

16 Citations (Scopus)
258 Downloads (Pure)

Abstract

This work concerns new superhydrophobic surfaces, generated by replacing long fluorocarbon chains, which bioaccumulate, with short chains whilst at the same time retaining oleophobic properties. Here, is described the synthesis of novel 3,4-propylenedioxythiophene derivatives containing both a short fluorocarbon chain (perfluorobutyl) and a hydrocarbon chain of various lengths (ethyl, butyl and hexyl). Superhydrophobic (θwater > 150°) surfaces with good oleophobic properties (60° > θhexadecane > 80°) have been obtained by electrodeposition using cyclic voltammetry. Surprisingly, the lowest hystereses and sliding angles (Lotus effect) are obtained with the shortest alkyl chains due to the presence of microstructures made of nanofibers on the surfaces, whereas, the longest alkyl chains leads to nanosheets with high adhesion (Petal effect). Such materials are potential candidates for biomedical applications.

Original languageEnglish
Pages (from-to)782-788
Number of pages7
JournalJournal of Polymer Science Part B - Polymer Physics
Volume52
Issue number11
Early online date17 Apr 2014
DOIs
Publication statusPublished - 24 Apr 2014

Keywords

  • adhesion
  • conducting polymers
  • electrochemistry
  • functionalization of polymers
  • superhydrophobic surfaces
  • surfaces
  • wettability

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