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Título: | Synthesis of high thermal stability Polypropylene copolymers with pyrrole functionality |
Autor: | Vaquero-Bermejo, Rosana; Blázquez-Blázquez, Enrique CSIC ORCID ; Hoyos, Mario CSIC ORCID; Gómez-Elvira González, José Manuel CSIC ORCID | Palabras clave: | Functional polyolefins Reactive polypropylene Cross-linked polypropylene High thermal stability polypropylene |
Fecha de publicación: | abr-2022 | Editor: | Elsevier | Citación: | Materials Today Communications 31 : 103469 (2022) | Resumen: | Functionalization of polyolefins has been proven to be a promising way to fine-tune their properties, among which, improved thermal stability is crucial for high performance in end-use applications. However, it still re mains in academia, as some important issues still need to be resolved for this methodology to move towards industrial scale-up, the most important of them being the development of one-step processes. This work focuses specifically on the development of a single-step functionalization route for the synthesis of high thermal and thermo-oxidative stability polypropylenes. The synthesis of Polypropylene (PP) bearing N-alkyl groups by copolymerization via metallocene catalysis is studied. The copolymers are found to exhibit high thermo oxidative stability, whose origin appears to be based, not only on the radical scavenging activity of N-alkyl moieties, but also on the associated crosslinking that takes place under processing conditions. Some exploratory results from a solid-state 13CNMR analysis provide support to a radical mechanism, involving coupling between benzyl-like pyrrolyl species. | Versión del editor: | https://doi.org/10.1016/j.mtcomm.2022.103469 | URI: | http://hdl.handle.net/10261/267259 | DOI: | 10.1016/j.mtcomm.2022.103469 | ISSN: | 2352-4928 |
Aparece en las colecciones: | (ICTP) Artículos |
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Materials Today Communications 31 (2022) 103469.pdf | Artículo principal | 2,26 MB | Adobe PDF | Visualizar/Abrir |
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