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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, Hee Taek; Ryu, Mi Hee; Jung, Ye Jean; Lim, Sooyoung; Song, Hye Min; Park, Jeyoung; Hwang, Sung Yeon; Lee, Hoe-Suk; Yeon, Young Joo; Sung, Bong Hyun; Bornscheuer, Uwe T.; Park, Si Jae; Joo, Jeong Chan; Oh, Dongyeop X.
- Ewha Authors
- 박시재
- SCOPUS Author ID
- 박시재
- Issue Date
- 2021
- Journal Title
- CHEMSUSCHEM
- ISSN
- 1864-5631
1864-564X
- Citation
- CHEMSUSCHEM vol. 14, no. 19, pp. 4251 - 4259
- Keywords
- biocatalysis; catechol; esterase; poly(ethylene terephthalate); upcycling
- Publisher
- WILEY-V C H VERLAG GMBH
- Indexed
- SCIE; 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.
- DOI
- 10.1002/cssc.202100909
- Appears in Collections:
- 공과대학 > 화공신소재공학과 > Journal papers
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