Abstract
The study addresses the relationship between the omniphobic properties of coatings based on polymer matrices doped with liquid lubricants (Slippery Liquid-Infused Porous Surfaces, SLIPS) and the degree of swelling of the matrices in the lubricant. A method for fabrication of matrices based on poly(perfluoroalkyl methacrylates) impregnated with fluorinated oils with different lubricant contents by one-stage synthesis in supercritical (SC) CO2 is proposed. The dependence of the contact angle hysteresis and the sliding angle on the degree of swelling was studied for water and saturated hydrocarbon droplets. The lubricant content in the matrices was determined by thermogravimetric analysis and ellipsometry.
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ACKNOWLEDGMENTS
This work was performed using the research equipment of the Center for Collective Use “Analytical Center for the Problems of Deep Oil Refining and Petrochemistry,” Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences. The electron microscopy examination was performed using the equipment of the Center for Collective Use “Analysis of Chemical and Biological Systems and Natural Materials,” Federal Research Center of Chemical Physics, Russian Academy of Sciences (no. 506694).
Funding
This work was supported by the Russian Science Foundation, project no. 17-13-01359-P. P.S. Kazaryan is a holder of fellowship of the Foundation for the Development of Theoretical Physics and Mathematics “Basis.”
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Kazaryan, P.S., Kharitonova, E.P., Makaev, S.V. et al. Relationship between the Omniphobic Properties and the Swelling Degree of SLIPS Coatings Based on Polymer Gel Thin Films. Dokl Phys Chem 497, 28–33 (2021). https://doi.org/10.1134/S0012501621030027
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DOI: https://doi.org/10.1134/S0012501621030027