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. 2018 Apr 12;10(4):429. doi: 10.3390/polym10040429

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© 2018 by the authors.

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/).

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Scheme 1 — Chemical structures of the used monomers including the abbreviations (DMAEMA: 2-(dimethylamino)ethyl methacrylate; MOTAC: [2-(methacryloyloxy)ethyl] trimethylammonium chloride; DMAEA: 2-(dimethylamino)ethyl acrylate; OTAC: [2-(acryloyloxy)ethyl]trimethyllammonium chloride; DMAPMA: 3-(dimethylamino)propyl methacrylamide; MAPTAC: [3-(methacrylamido)propyl]trimethylammonium chloride; APMA: N-(3-aminopropyl) methacrylamide) of the respective quaternized compounds.