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Aminolytic upcycling of poly(ethylene terephthalate) wastes using a thermally-stable organocatalyst

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Abstract

Poly(ethylene terephthalate) (PET) is one of the most commonly used plastics for a wide range of applications, but is also one on the main contributors to the accumulation of plastic waste in the environment. Herein, we propose an aminolytic method to depolymerise PET using various amino-alcohols by organocatalysis and their subsequent use for the production of poly(ester-amide)s. This research aims to highlight the potential of thermally stable acid–base mixtures for depolymerization of PET in the presence of amines, specifically TBD : MSA. The chemoselectivity of the process favors the formation of diol terephthalamides in high yields. Different amino alcohols are also explored in order to obtain diols with secondary amine or ether functionalities. Finally, these novel terephthalamide diols are investigated as novel synthons for the synthesis of poly(ester-amide)s, showing potential for the “creative reuse” of plastic wastes.

Graphical abstract: Aminolytic upcycling of poly(ethylene terephthalate) wastes using a thermally-stable organocatalyst

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Supplementary files

Article information


Submitted
14 Jan 2020
Accepted
06 Jun 2020
First published
16 Jun 2020

Polym. Chem., 2020, Advance Article
Article type
Communication

Aminolytic upcycling of poly(ethylene terephthalate) wastes using a thermally-stable organocatalyst

J. Demarteau, I. Olazabal, C. Jehanno and H. Sardon, Polym. Chem., 2020, Advance Article , DOI: 10.1039/D0PY00067A

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