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

David Zahner*, Joselle Abagat, Frank Svec, Jean M.J. Fréchet, Pavel A. Levkin

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    170 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

    • General Materials Science
    • Mechanics of Materials
    • Mechanical Engineering

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