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. 2012 Sep 25;13(10):12232–12241. doi: 10.3390/ijms131012232

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© 2012 by the authors; licensee Molecular Diversity Preservation International, Basel, Switzerland.

This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0).

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Monomer conversion (■) and M_n (▲) as a function of reaction time for AFEST-catalyzed ring-opening polymerization of δ-valerolactone. The reactions were conducted in toluene at 70 °C for different reaction times.