20.500.12556/RUL-152637 Chemical recycling of flexible polyurethane foams by aminolysis to recover high-quality polyols Polyurethane foams (PUFs) are widely used commodity materials, but most of them end up in landfills at the end of their life, which is not in line with the circular economy approach. Here, we introduce microwave-assisted aminolysis with amine reagents that contain primary and tertiary amino groups in the structure. These reagents enable complete degradation of the urethane groups in the structure of the flexible PUFs with a much lower amount of degradation reagent than is typically required for solvolysis reactions. The purified, recovered polyols are close equivalents to the corresponding virgin polyols in terms of their structural and molar mass characteristics. Therefore, they can be used for the production of high-quality PUFs without having to adapt the synthesis process. The flexible PUFs made from recovered polyols have comparable mechanical properties to those made from virgin polyols. sustainable chemistry waste prevention chemical recycling aminolysis flexible polyurethane foam microwave chemistry degradation mixtures polyols reagents substitution reactions materiali poliuretanske pene odlagališča razgradnja odpadki true false true Angleški jezik Slovenski jezik Članek v reviji 2023-12-01 13:30:24 2023-12-01 13:30:24 2023-12-02 03:49:24 0000-00-00 00:00:00 2023 0 0 Str. 10864–10873 iss. 29 Vol. 11 Jul. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.1/.2 2168-0485 10.1021/acssuschemeng.3c02311 158950403 grdadolnik-et-al-2023-chemical-recycling-of-flexible-polyurethane-foams-by-aminolysis-to-recover-high-quality-polyols_(1).pdf grdadolnik-et-al-2023-chemical-recycling-of-flexible-polyurethane-foams-by-aminolysis-to-recover-high-quality-polyols_(1).pdf 1 DC249A630235316E0A44DDC1F3069E68 992227c4af0c0b5a626ea98e409457048347df91557d5bd4d474423aef9e7454 d0a13d7d-9045-11ee-b3b7-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=178227 https://pubs.acs.org/doi/10.1021/acssuschemeng.3c02311 1 6762d221-9045-11ee-b3b7-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=178225 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0