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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
Quantification of chemical characteristics of SMI/SfO-PUS and SMI/SfO-MUS coatings after thermal oil release based on Raman surface mapping and image processing: (a) determination of oil release from surface area coverage, (b) determination of imide content from greyscale value.