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. 2020 Jan 22;10:2986. doi: 10.3389/fmicb.2019.02986

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Copyright © 2020 Gaytán, Sánchez-Reyes, Burelo, Vargas-Suárez, Liachko, Press, Sullivan, Cruz-Gómez and Loza-Tavera.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Physical and chemical analyses of the aromatic PE-PU-A copolymer after incubation with the BP8 community. (A) FTIR spectra. (B) DTG analysis. Thermal degradation stages correspond to the following functional groups: (I) Low molecular weight compounds, (II) Urethane, (III) Ester, (IV) Ether. (C) DSC analysis. Glass transition temperature (Tg) represents the relative amount of soft and hard segments; melting temperatures, Tm-I, Tm-II, and Tm-III are associated with hard domains, and crystallization temperature (Tc) represents heat-directed crystallization of copolymer chains. NI, non-inoculated.