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    Por favor, use este identificador para citar o enlazar este ítem:https://uvadoc.uva.es/handle/10324/72776

    Título
    Claisen thermally rearranged (CTR) polymers
    Autor
    Tena Matias, AlbertoAutoridad UVA Orcid
    Rangou, Sofia
    Shishatskiy, Sergey
    Filiz, Volkan
    Abetz, Volker
    Año del Documento
    2016
    Editorial
    American Association for the Advancement of Science
    Descripción
    Producción Científica
    Documento Fuente
    Sci. Adv. 2016; 2 : e1501859
    Résumé
    Thermally rearranged (TR) polymers, which are considered the next-generation of membrane materials because of their excellent transport properties and high thermal and chemical stability, are proven to have significant drawbacks because of the high temperature required for the rearrangement and low degree of conversion during this process. We demonstrate that using a [3,3]-sigmatropic rearrangement, the temperature required for the rearrangement of a solid glassy polymer was reduced by 200°C. Conversions of functionalized polyimide to polybenzoxazole of more than 97% were achieved. These highly mechanically stable polymers were almost five times more permeable and had more than two times higher degrees of conversion than the reference polymer treated under the same conditions. Properties of these second-generation TR polymers provide the possibility of preparing efficient polymer membranes in a form of, for example, thin-film composite membranes for various gas and liquid membrane separation applications.
    Revisión por pares
    SI
    DOI
    10.1126/sciadv.1501859
    Patrocinador
    HelmholtzAssociation of German Research Centers through the Helmholtz Portfolio MEM-BRAIN.
    Idioma
    eng
    URI
    https://uvadoc.uva.es/handle/10324/72776
    Tipo de versión
    info:eu-repo/semantics/publishedVersion
    Derechos
    openAccess
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    • DEP31 - Artículos de revista [167]
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