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. 2017 Oct 25;9(11):551. doi: 10.3390/polym9110551

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© 2017 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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The mechanism proposed for the “Fuchs-Farthing” method [22,23,24]. (A) N-carboxyanhydrides (NCAs) formation by reaction with phosgene and (B) Formation of NCA and acidic decomposition.