Journal of Polymers and the Environment

, Volume 27, Issue 12, pp 2956–2962 | Cite as

Chemical Recycling of Polyethlylene Terephthalate by Glycolysis Using Deep Eutectic Solvents

  • Emine SertEmail author
  • Esra Yılmaz
  • Ferhan Sami Atalay
Original paper


In this study, the glycolysis of polyethylene terephthalate was studied in presence of deep eutectic solvents as catalyst. In the glycolysis of PET, five different deep eutectic solvents were synthesized using different hydrogen bond donors and acceptors. Among the synthesized DESs, the most efficient catalyst was found to be DES formed by potassium carbonate and ethylene glycol. Glycolysis reaction was performed between PET and ethylene glycol. The effects of process parameters such as temperature, ratio of EG/PET and ratio of DES/PET were examined. The maximum yield for monomer product, bis(2-hydroxyethyl) terephthalate was observed as 88% at the reaction temperature of 180 °C, ethylene glycol/deep eutectic solvent ratio of 15 and deep eutectic solvent/polyethylene terephthalate ratio of 6.


PET Glycolysis BHET Deep eutectic solvent 



This study was supported by Ege University 18MÜH025 scientific research project.


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© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Chemical EngineeringEge UniversityİzmirTurkey

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