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. 2016 Aug 10;8(8):294. doi: 10.3390/polym8080294

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© 2016 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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Figure A3 — MALDI-TOF mass spectrum of PAIS prepared from the reaction of IS (C = 2.6 M) with CH2Cl2 added by drop by drop method and under high intensity mixing. Linear chains are represented by triangular symbols (▲) whereas cyclic species are characterized by circular symbols (●) both being cationized with Na⁺.