Designing superhydrophobic surfaces using fluorosilsesquioxane-urethane hybrid and porous silicon gradients

Aravindaraj G. Kannan, Steven J.P. McInnes, Namita R. Choudhury, Naba K. Dutta, Nicolas H. Voelcker

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Abstract

Here we describe a new class of near superhydrophobic surfaces formed using fluorinated polyhedral oligosilsesquioxane (FluoroPOSS) urethane hybrids and porous silicon gradients (pSi). We demonstrate that the surface segregation behavior of the hydrophobic fluoro component can be controlled by the type and nature of chain extender of the urethane and resultant hydrophobic association via intra or intermolecular aggregation. The surface film formed exhibits near superhydrophobicity. This work has significant potential for applications in antifouling and self-cleaning coatings, biomedical devices, microfluidic systems and tribological surfaces.

Original languageEnglish
Title of host publicationProceedings
Volume7267
DOIs
Publication statusPublished - 1 Dec 2008
Externally publishedYes
EventSmart Materials V - Melbourne, VIC, Australia
Duration: 10 Dec 200812 Dec 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
PublisherSPIE
ISSN (Print)0277-786X

Conference

ConferenceSmart Materials V
CountryAustralia
CityMelbourne, VIC
Period10/12/0812/12/08

Keywords

  • FluoroPOSS
  • Porous gradients
  • Silsesquioxanes
  • Superhydrophobicity
  • Urethane hybrid

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