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

doi:10.1002/adma.201706657

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

Chemistry

Research output: Contribution to journal › Article › peer-review

52 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 language	English (US)
Article number	1706657
Journal	Advanced Materials
Volume	30
Issue number	32
DOIs	https://doi.org/10.1002/adma.201706657
State	Published - Aug 9 2018

Funding

This work was supported by the Office of Naval Research (N00014-17-1-2482) and the National Science Foundation (CMMI-1462633). This work made use of the Northwestern University Micro/Nano Fabrication Facility (NUFAB), which was supported by the State of Illinois and Northwestern University and Northwestern University Atomic and Nanoscale Characterization Experimental Center (NUANCE) facilities, which were supported by NSF-MRSEC and the MRSEC (DMR-1121262). W-B. J. acknowledges support from the BK-21 Plus program. W-K. Lee gratefully acknowledges support from the Ryan Fellowship and the Northwestern University International Institute for Nanotechnology.

Keywords

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

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
General Materials Science

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10.1002/adma.201706657

Cite this

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title = "Monolithic Polymer Nanoridges with Programmable Wetting Transitions",

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.",

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AU - Rhee, Dongjoon

AU - Hu, Jingtian

AU - Lee, Young Ah Lucy

AU - Jacobson, Christian

AU - Jung, Hee Tae

AU - Odom, Teri W.

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Monolithic Polymer Nanoridges with Programmable Wetting Transitions

Abstract

Funding

Keywords

ASJC Scopus subject areas

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