Atmospheric Pressure Plasma Deposition of Hydrophilic/Phobic Patterns and Thin Film Laminates on Any Surface
(2019) Langmuir : the A C S journal of surfaces and colloids — Vol. 35, n° 30, p. 9677-9683 (2019)
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- Authors
Demaude, A. 
Reniers, F.
- Abstract
- Patterned and layered hydrophilic/phobic coatings were deposited on multiple surfaces using nonfluorinated precursors (AA, acrylic acid; PMA, propargyl methacrylate) with an atmospheric pressure dielectric barrier discharge operating in open air. Water contact angles of the resulting films could be tuned from <5° (superhydrophilic) to >135° (very hydrophobic) by adjusting the AA/PMA feed ratio and/or via postdeposition exposure of films to an Ar/O2 plasma treatment. Coatings could be applied to any surface and were seen to be water stable, due in large part to cross-linking induced from the reactivity of the PMA pendant groups. Hybrid hydrophilic/phobic patterns at submillimeter length scales, and philic/phobic/philic laminates were produced using a shadow mask and sequential deposition, respectively. Chemical heterogeneity of films was assessed using XPS, SIMS, and micro-IR imaging and suggest that localization of COOH and OH groups are primarily responsible for hydrophilicity. Overall, this work demonstrates that atmospheric pressure plasma polymerization is a simple and scalable method for robust and tunable control of wettability of surfaces of all kinds.
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Citations
Demaude, A., Poleunis, C., Goormaghtigh, E., Viville, P., Lazzaroni, R., Delcorte, A., Gordon, M., & Reniers, F. (2019). Atmospheric Pressure Plasma Deposition of Hydrophilic/Phobic Patterns and Thin Film Laminates on Any Surface. Langmuir : the A C S journal of surfaces and colloids, 35(30), 9677-9683. https://doi.org/10.1021/acs.langmuir.9b00493 (Original work published 2019)