Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/345374
COMPARTIR / EXPORTAR:
SHARE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Lithium anthraquinoids as catalysts in the ROP of lactide and caprolactone into cyclic polymers |
Otros títulos: | Martínez-Lao,a Manuel A. Ortuño d and Ignacio Fernández | Autor: | Ruiz Martínez, Cristina; Pérez, Juana M.; Arrabal-Campos, Francisco M.; Rodríguez-Diéguez, Antonio; Choquesillo Lazarte, Duane; Martínez-Lao, Juan A.; Ortuño, Manuel A.; Fernández, Ignacio CSIC ORCID | Palabras clave: | Catalysts Fourier transform infrared spectroscopy Lithium compounds Synthesis (chemical) |
Fecha de publicación: | 2023 | Editor: | Royal Society of Chemistry (UK) | Citación: | Polymer Chemistry 14: 452-461 (2023) | Resumen: | We describe herein the synthesis and characterization of three novel lithium complexes (2b-d) bearing different hydrazonyl anthraquinonic backbones, which are tested in the ring-opening polymerization (ROP) of lactide and ϵ-caprolactone towards the synthesis of cyclic polymers. Various analytical methods, including multinuclear (H, C, N, Li) one- and two-dimensional, homo- and heteronuclear nOe and PGSE diffusion NMR, high-resolution MS spectrometry and FTIR spectroscopy, are used to fully identify the structures of the catalysts. The resulting cyclic polymers were characterized by means of MALDI-TOF, end-group NMR analysis and PGSE diffusion NMR coupled to inverse Laplace algorithms to unravel the weight-average molecular weight and dispersity. In comparison to the previously reported complex (2a), a clear difference in selectivity (linear vs. cyclic) is observed when using ligand backbones with different coordinative abilities and/or steric restrictions. | Versión del editor: | http://dx.doi.org/10.1039/d2py01076c | URI: | http://hdl.handle.net/10261/345374 | Identificadores: | doi: 10.1039/d2py01076c issn: 1759-9962 |
Aparece en las colecciones: | (IACT) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
Este item está licenciado bajo una Licencia Creative Commons