Self-organized micropatterns of high aspect ratio polymer nanofibers by wetting of nanopores

Jie Kong, Kai Leung Yung, Yan Xu, Lan He, K. H. Lau, Ching Yuen Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

11 Citations (Scopus)

Abstract

The self-organized micropatterns of high aspect ratio polymer nanofibers were prepared via a facile nanoporous wetting strategy. Various micropatterns with labyrinth-like or honeycomb-like topography can be formed in a controllable manner by adjusting the nanoporous template's nanochannel characteristic (deep-hole or through-hole), the size of nanopores, and the wetting time. The honeycomb-like micro-pattern shows a little higher hydrophobicity than labyrinth-like micropattern when the diameters of their nanofibers are similar. The formation of various self-organized micropatterns is mainly dependant on the dilation stress and interaction between nanofibers during the template's removal and solvent evaporation process. The confining or free conditions of unreleased nanofibers' tips in nanopores determine the topography of the resultant self-organized micropattern, i.e., labyrinth-like or honeycomblike.
Original languageEnglish
Pages (from-to)1280-1289
Number of pages10
JournalJournal of Polymer Science, Part B: Polymer Physics
Volume46
Issue number12
DOIs
Publication statusPublished - 15 Jun 2008

Keywords

  • Micropattern
  • Nanofibers
  • Nanopores
  • Wetting

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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