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. 2018 Apr 25;10(5):471. doi: 10.3390/polym10050471

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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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Variation of the intrinsic viscosity with time during solid-state polymerization (SSP) of PEF using TBT catalyst and three different initial IV values; PEF/TBT.1 (a), PEF/TBT.2 (b), and PEF/TBT.3 (c) at different temperatures. Continuous lines represent the theoretical kinetic model simulation results.

Variation of the intrinsic viscosity with time during solid-state polymerization (SSP) of PEF using TBT catalyst and three different initial IV values; PEF/TBT.1 (a), PEF/TBT.2 (b), and PEF/TBT.3 (c) at different temperatures. Continuous lines represent the theoretical kinetic model simulation results.