| Title |
Versatile Chemical Recycling Strategies: Value-Added Chemicals from Polyester and Polycarbonate Waste |
| ID_Doc |
19832 |
| Authors |
Payne, JM; Kamran, M; Davidson, MG; Jones, MD |
| Title |
Versatile Chemical Recycling Strategies: Value-Added Chemicals from Polyester and Polycarbonate Waste |
| Year |
2022 |
| Published |
Chemsuschem, 15.0, 8 |
| DOI |
10.1002/cssc.202200255 |
| Abstract |
Zn-II-complexes bearing half-salan ligands were exploited in the mild and selective chemical upcycling of various commercial polyesters and polycarbonates. Remarkably, we report the first example of discrete metal-mediated poly(bisphenol A carbonate) (BPA-PC) methanolysis being appreciably active at room temperature. Indeed, Zn(2)(2) and Zn(2)Et achieved complete BPA-PC consumption within 12-18 mins in 2-Me-THF, noting high bisphenol A (BPA) yields (S-BPA=85-91 %) within 2-4 h. Further kinetic analysis found such catalysts to possess k(app) values of 0.28 +/- 0.040 and 0.47 +/- 0.049 min(-1) respectively at 4 wt%, the highest reported to date. A completely circular upcycling approach to plastic waste was demonstrated through the production of several renewable poly(ester-amide)s (PEAs), based on a terephthalamide monomer derived from bottle-grade poly(ethylene terephthalate) (PET), which exhibited excellent thermal properties. |
| Author Keywords |
chemical upcycling; green chemistry; homogeneous catalysis; polycarbonates; polyesters |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000759388600001 |
| WoS Category |
Chemistry, Multidisciplinary; Green & Sustainable Science & Technology |
| Research Area |
Chemistry; Science & Technology - Other Topics |
| PDF |
https://onlinelibrary.wiley.com/doi/pdfdirect/10.1002/cssc.202200255
|