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

Title
Chemo-Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating Materials
Authors
Kim H.T.Hee Ryu M.Jung Y.J.Lim S.Song H.M.Park J.Hwang S.Y.Lee H.-S.Yeon Y.J.Sung B.H.Bornscheuer U.T.Park S.J.Joo J.C.Oh D.X.
Ewha Authors
박시재
SCOPUS Author ID
박시재scopus
Issue Date
2021
Journal Title
ChemSusChem
ISSN
1864-5631JCR Link
Citation
ChemSusChem vol. 14, no. 19, pp. 4251 - 4259
Keywords
biocatalysiscatecholesterasepoly(ethylene terephthalate)upcycling
Publisher
John Wiley and Sons Inc
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
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. © 2021 The Authors. ChemSusChem published by Wiley-VCH GmbH
DOI
10.1002/cssc.202100909
Appears in Collections:
엘텍공과대학 > 화학신소재공학전공 > Journal papers
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