Turning waste into resources. Efficient synthesis of biopolyurethanes from used cooking oils and CO2
Abstract
The coupling reaction of carbon dioxide and highly-substituted epoxides derived from renewable resources such as fatty acids and waste vegetable oils (cooking oils derived from olive and sunflower) leads to the synthesis of new bio-derived cyclic carbonates using efficient metal-free bifunctional organocatalysts under mild and solvent-free reaction conditions. Once cyclic carbonates derived from biobased sources were synthesized, the design of non-isocyanate polyurethanes (NIPUs) with different chemical structures was investigated by their reaction with a broad substrate scope of diamines. The NIPUs materials were characterized by spectroscopic techniques (NMR and IR) and their molecular weights and polydispersities were determined by GPC studies. Finally, thermal properties of the polymers were studied by DSC and TGA analyses.
Más información
Título según WOS: | ID WOS:001166075100001 Not found in local WOS DB |
Título de la Revista: | JOURNAL OF CO2 UTILIZATION |
Volumen: | 79 |
Editorial: | ELSEVIER SCI LTD |
Fecha de publicación: | 2024 |
DOI: |
10.1016/j.jcou.2023.102659 |
Notas: | ISI |