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Serkan Demirci, Selin Kinali-Demirci and Tuncer Caykara Novel pH-responsive mixed-charge copolymer brushes based on carboxylic acid and quaternary amine monomers Journal of Polymer Science Part A: Polymer Chemistry 51

Version of Record online: 7 JAN 2013 | DOI: 10.1002/pola.26532

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In this study, highly pH-responsive mixed-charged copolymer brushes are reported containing negatively charged carboxylic acid monomers (4-vinylbenzoic acid) and positively charged quaternary amine monomers ((ar-vinylbenzyl)trimethylammonium chloride) via reversible addition–fragmentation chain transfer-mediated polymerization. The brushes have negative charge under neutral and basic conditions, and are positively charged under acidic conditions owing to the protonation of the carboxylic acid groups.

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