The DOI matches its Crossref record; 28 of the 28 references it cites were found in a registry or an index.
Chemical Upcycling of Commercial Polystyrene via Catalyst-Controlled Photooxidation
Abstract
Chemical upcycling of polystyrene into targeted small molecules is desirable to reduce plastic pollution. Herein, we report the upcycling of polystyrene to benzoyl products, primarily benzoic acid, using a catalyst-controlled photooxidative degradation method. FeCl 3 undergoes a homolytic cleavage upon irradiation with white light to generate a chlorine radical, abstracting an electron-rich hydrogen atom on the polymer backbone. Under the oxygen-rich environment, high MW polystyrene (>90 kg/mol) degrades down to <1 kg/mol and produces up to 23 mol % benzoyl products. A series of mechanistic studies showed that chlorine radicals promoted the degradation via hydrogen-atom abstraction. Commercial polystyrene degrades efficiently in our method, showing the compatibility of our system with polymer fillers. Finally, we demonstrated the potential of scaling up our approach in a photoflow process to convert gram quantities of PS to benzoic acid.
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Cites
Chemical recycling of waste plastics for new materials production
Rahimi, A., & García, J. M. (2017) · Nature Reviews Chemistry · doi:10.1038/s41570-017-0046 · Cited by 2,121
Mechanical Recycling of Packaging Plastics: A Review
Schyns, Z. O. G., & Shaver, M. P. (2021) · Macromolecular Rapid Communications · doi:10.1002/marc.202000415 · Cited by 1,643
Photodegradation and photostabilization of polymers, especially polystyrene: review
Yousif, E., & Haddad, R. (2013) · SpringerPlus · doi:10.1186/2193-1801-2-398 · Cited by 1,503
Cambié, D., Bottecchia, C., Straathof, N. J. W., Hessel, V., & Noël, T. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00707 · Cited by 1,502
Toward polymer upcycling—adding value and tackling circularity
Korley, L. T. J., Epps, T. H., Helms, B. A., & Ryan, A. J. (2021) · Science · doi:10.1126/science.abg4503 · Cited by 719
Chemically recyclable thermoplastics from reversible-deactivation polymerization of cyclic acetals
Abel, B. A., Snyder, R. L., & Coates, G. W. (2021) · Science · doi:10.1126/science.abh0626 · Cited by 483
Updates on the Roadmap for Photocatalysis
Melchionna, M., & Fornasiero, P. (2020) · ACS Catalysis · doi:10.1021/acscatal.0c01204 · Cited by 470
Copper Catalyzed C(sp3)–H Bond Alkylation via Photoinduced Ligand-to-Metal Charge Transfer
Treacy, S. M., & Rovis, T. (2021) · Journal of the American Chemical Society · doi:10.1021/jacs.1c00687 · Cited by 314
Photocatalytic C–H activation and the subtle role of chlorine radical complexation in reactivity
Yang, Q., Wang, Y., Qiao, Y., Gau, M. R., Carroll, P. J., Walsh, P. J., & Schelter, E. J. (2021) · Science · doi:10.1126/science.abd8408 · Cited by 297
A General Small-Scale Reactor To Enable Standardization and Acceleration of Photocatalytic Reactions
Le, C. “., Wismer, M. K., Shi, Z.-C., Zhang, R., Conway, D. V., Li, G., Vachal, P., Davies, I. W., & MacMillan, D. W. C. (2017) · ACS Central Science · doi:10.1021/acscentsci.7b00159 · Cited by 256
Cited by
Cai, Z., Li, M., Zhu, Z., Wang, X., Huang, Y., Li, T., Gong, H., & Yan, M. (2023) · Microorganisms · doi:10.3390/microorganisms11071661 · Cited by 452
Gu, Y., Jiang, Y., Chen, X., Li, L., Chen, H., Chen, J., Wang, C., Yu, J., Chen, C., & Li, H. (2024) · Environment International · doi:10.1016/j.envint.2024.108640 · Cited by 42
Huang, H.-Y., Xie, M., Wang, S.-Q., Huang, Y.-T., Luo, Y.-H., Yu, D.-G., Cai, Z., & Zhu, J.-B. (2025) · Journal of the American Chemical Society · doi:10.1021/jacs.4c17703 · Cited by 33
Metadata
- Authors
- Oh, S., & Stache, E. E.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2022-03-23
- Volume
- 144
- Issue
- 13
- Pages
- 5745-5749
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W4220720197
- Cited by
- 361
- References
- 28
- FWCI
- 22.23
- Type
- journal article
- Language
- en
- Open access
- closed
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- Oh, S., & Stache, E. E. (2022). Chemical Upcycling of Commercial Polystyrene via Catalyst-Controlled Photooxidation. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.2c01411
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
