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Depolymerization of poly(ethylene terephthalate) recycled from post‐consumer soft‐drink bottles
Abstract
Poly(ethylene terephthalate), recycled from post‐consumer soft‐drink bottles, is depolymerized by glycolysis in excess ethylene glycol at 190°C in the presence of a metal acetate catalyst. The glycolyzed products consist mostly of the PET monomer, bis(hydroxyethyl) terephthalate, and the dimer, and after long reaction time (up to and longer than 8 h), an equilibrium is attained between these two species. No other higher PET oligomers were detected in the study. Of the four metal acetates (lead, zinc, cobalt, and manganese) tested, zinc acetate is the best in terms of the extent of depolymerization, that is, the relative amount of monomer formed. The presence of green pigment in one type of recycled PET apparently has no effects on the glycolysis reaction.
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Cited by
Beyond Mechanical Recycling: Giving New Life to Plastic Waste
Vollmer, I., Jenks, M. J. F., Roelands, M. C. P., White, R. J., van Harmelen, T., de Wild, P., van der Laan, G. P., Meirer, F., Keurentjes, J. T. F., & Weckhuysen, B. M. (2020) · Angewandte Chemie International Edition · doi:10.1002/anie.201915651 · Cited by 1,905
Pet Waste Management by Chemical Recycling: A Review
Sinha, V., Patel, M. R., & Patel, J. V. (2010) · Journal of Polymers and the Environment · doi:10.1007/s10924-008-0106-7 · Cited by 853
Expanding plastics recycling technologies: chemical aspects, technology status and challenges
Li, H., Aguirre-Villegas, H. A., Allen, R. D., Bai, X., Benson, C. H., Beckham, G. T., Bradshaw, S. L., Brown, J. L., Brown, R. C., Cecon, V. S., et al. (2022) · Green Chemistry · doi:10.1039/d2gc02588d · Cited by 616
Recycling of poly(ethylene terephthalate) – A review focusing on chemical methods
Geyer, B., Lorenz, G., & Kandelbauer, A. (2016) · Express Polymer Letters · doi:10.3144/expresspolymlett.2016.53 · Cited by 258
Horn, H. W., Jones, G. O., Wei, D. S., Fukushima, K., Lecuyer, J. M., Coady, D. J., Hedrick, J. L., & Rice, J. E. (2012) · The Journal of Physical Chemistry A · doi:10.1021/jp304212y · Cited by 97
Metadata
- Authors
- Baliga, S., & Wong, W. T.
- Venue
- Journal of Polymer Science Part A: Polymer Chemistry
- Publisher
- Wiley
- Published
- 1989-05
- Volume
- 27
- Issue
- 6
- Pages
- 2071-2082
- ISSN
- 0887-624X (ISSN-L)
- 1099-0518
- OpenAlex
- W2136615766
- Cited by
- 291
- References
- 0
- FWCI
- 0.50
- Type
- journal article
- Language
- en
- Open access
- closed
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- Baliga, S., & Wong, W. T. (1989). Depolymerization of poly(ethylene terephthalate) recycled from post‐consumer soft‐drink bottles. Journal of Polymer Science Part A: Polymer Chemistry. https://doi.org/10.1002/pola.1989.080270625
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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