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. 2021 Feb 27;13(5):744. doi: 10.3390/polym13050744

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© 2021 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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Conversion ways of PET. (a) Conversion of PET to bis(hydroxyalkyl) terephthalate (BHET) in ionic liquid [45]; (b) process from waste PET to new 1,4-cyclohexanedimethanol (CHDM) product [47]; (c) conversion equation from BHET to CHDM [46].