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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/).
Snapshots of (a) the equilibrated amorphous cells and (b) components of the polymer side chains, as well as water molecules and hydronium ions. Color scheme in the polymer chains: carbon in gray, hydrogen in light cyan, oxygen in red and sulfur in yellow.