Chemo‐Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating Materials

Journal article

H. Kim, Mi Hee Ryu, Ye Jean Jung, Sooyoung Lim, Hye Min Song, Jeyoung Park, S. Hwang, Hoe‐Suk Lee, Y. Yeon, B. Sung, U. Bornscheuer, Si Jae Park, J. Joo, D. Oh
ChemSusChem, 2021

Semantic Scholar DOI PubMedCentral PubMed

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APA Click to copy
Kim, H., Ryu, M. H., Jung, Y. J., Lim, S., Song, H. M., Park, J., … Oh, D. (2021). Chemo‐Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating Materials. ChemSusChem.

Chicago/Turabian Click to copy
Kim, H., Mi Hee Ryu, Ye Jean Jung, Sooyoung Lim, Hye Min Song, Jeyoung Park, S. Hwang, et al. “Chemo‐Biological Upcycling of Poly(Ethylene Terephthalate) to Multifunctional Coating Materials.” ChemSusChem (2021).

MLA Click to copy
Kim, H., et al. “Chemo‐Biological Upcycling of Poly(Ethylene Terephthalate) to Multifunctional Coating Materials.” ChemSusChem, 2021.

BibTeX Click to copy

@article{h2021a,
  title = {Chemo‐Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating Materials},
  year = {2021},
  journal = {ChemSusChem},
  author = {Kim, H. and Ryu, Mi Hee and Jung, Ye Jean and Lim, Sooyoung and Song, Hye Min and Park, Jeyoung and Hwang, S. and Lee, Hoe‐Suk and Yeon, Y. and Sung, B. and Bornscheuer, U. and Park, Si Jae and Joo, J. and Oh, D.}
}

Abstract

Abstract Chemo‐biological upcycling of poly(ethylene terephthalate) (PET) developed in this study includes the following key steps: chemo‐enzymatic PET depolymerization, biotransformation of terephthalic acid (TPA) into catechol, and its application as a coating agent. Monomeric units were first produced through PET glycolysis into bis(2‐hydroxyethyl) terephthalate (BHET), mono(2‐hydroxyethyl) terephthalate (MHET), and PET oligomers, and enzymatic hydrolysis of these glycolyzed products using Bacillus subtilis esterase (Bs2Est). Bs2Est efficiently hydrolyzed glycolyzed products into TPA as a key enzyme for chemo‐enzymatic depolymerization. Furthermore, catechol solution produced from TPA via a whole‐cell biotransformation (Escherichia coli) could be directly used for functional coating on various substrates after simple cell removal from the culture medium without further purification and water‐evaporation. This work demonstrates a proof‐of‐concept of a PET upcycling strategy via a combination of chemo‐biological conversion of PET waste into multifunctional coating materials.