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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 (http://creativecommons.org/licenses/by/4.0/).
(a) General structure of TFC membranes investigated in this work consisting of three layers: s—selective (Pebax-1657), g—gutter (PDMS), and p—porous support layer. (b) Electrical circuit analog of the tri-layer structure.