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. 2018 Feb 23;10(2):220. doi: 10.3390/polym10020220

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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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FTIR spectrum of nanosilica particles after PDADMAC adsorption in the wave number range of 400–4000 cm^–1. The inset is an FTIR spectrum of PDADMAC solution.