Monolithic Polymer Nanoridges with Programmable Wetting Transitions

Won Kyu Lee, Woo Bin Jung, Dongjoon Rhee, Jingtian Hu, Young Ah Lucy Lee, Christian Jacobson, Hee Tae Jung, Teri W. Odom*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

28 Scopus citations

Abstract

This paper describes polymeric nanostructures with dynamically tunable wetting properties. Centimeter-scale areas of monolithic nanoridges can be generated by strain relief of thermoplastic polyolefin films with fluoropolymer skin layers. Changing the amount of strain results in polyolefin ridges with aspect ratios greater than four with controlled feature densities. Surface chemistry and topography are demonstrated to be able to be tailored by SF6-plasma etching to access multiple wetting states: Wenzel, Cassie–Baxter, and Cassie-impregnating states. Reversible transitions among the wetting states can be realized in a programmable manner by cyclic stretching and reshrinking the patterned substrates without delamination and cracking.

Original languageEnglish (US)
Article number1706657
JournalAdvanced Materials
Volume30
Issue number32
DOIs
StatePublished - Aug 9 2018

Keywords

  • Cassie-impregnating state
  • Cassie–Baxter state
  • Wenzel state
  • nanoridges
  • polyolefins
  • wetting transitions

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Monolithic Polymer Nanoridges with Programmable Wetting Transitions'. Together they form a unique fingerprint.

Cite this