A facile approach to superhydrophilic-superhydrophobic patterns in porous polymer films

David Zahner*, Joselle Abagat, Frank Svec, Jean Frechet, Pavel A. Levkin

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

146 Scopus citations

Abstract

A facile and versatile method for creating superhydrophilic patterns in superhydrophobic porous polymer films by UV-initiated photografting is presented. The extreme difference in wettability between superhydrophilic and superhydrophobic areas allows the use of the superhydrophilic patterns as virtual microfluidic channels. The method allows for precise control of the size and geometry of photografted superhydrophilic features, and the thickness, morphology, and transparency of the superhydrophobic and hydrophobic porous polymer films.

Original languageEnglish (US)
Pages (from-to)3030-3034
Number of pages5
JournalAdvanced Materials
Volume23
Issue number27
DOIs
StatePublished - Jul 19 2011

Keywords

  • micro/nanostructures
  • microfluidics
  • micropatterning
  • polymeric materials
  • superhydrophilic surface
  • superhydrophobic surfaces

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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