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    Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10259/5043

    Título
    Sensory polymeric foams as a tool for improving sensing performance of sensory polymers
    Autor
    Pascual Portal, Blanca SolUBU authority Orcid
    Vallejos Calzada, SaúlUBU authority Orcid
    Ramos Rodríguez, CiprianoUBU authority Orcid
    Sanz Díez, Mª TeresaUBU authority Orcid
    Reglero Ruiz, José A.UBU authority Orcid
    García García, Félix ClementeUBU authority Orcid
    García Pérez, José MiguelUBU authority Orcid
    Publicado en
    Sensors, 2018, V. 18, n. 12, 4378
    Editorial
    MDPI
    Fecha de publicación
    2018-12
    ISSN
    1424-8220
    DOI
    10.3390/s18124378
    Abstract
    Microcellular sensory polymers prepared from solid sensory polymeric films were tested in an aqueous Hg(II) detection process to analyze their sensory behavior. First, solid acrylic-based polymeric films of 100 µm thickness were obtained via radical copolymerization process. Secondly, dithizone sensoring motifs were anchored in a simple five-step route, obtaining handleable colorimetric sensory films. To create the microporous structure, films were foamed in a ScCO2 batch process, carried out at 350 bar and 60 °C, resulting in homogeneous morphologies with cell sizes around 5 µm. The comparative behavior of the solid and foamed sensory films was tested in the detection of mercury in pure water media at 2.2 pH, resulting in a reduction of the response time (RT) around 25% and limits of detection and quantification (LOD and LOQ) four times lower when using foamed films, due to the increase of the specific surface associated to the microcellular structure.
    Palabras clave
    sensory films
    microcellular polymer
    ScCO2 foaming
    mercury detection
    Materia
    Química orgánica
    Chemistry, Organic
    URI
    http://hdl.handle.net/10259/5043
    Versión del editor
    https://doi.org/10.3390/s18124378
    Collections
    • Artículos POLYMERS
    • Artículos BIOIND
    Attribution 4.0 International
    Documento(s) sujeto(s) a una licencia Creative Commons Attribution 4.0 International
    Files in this item
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    Pascual-sensors_2018.pdf
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    1.115Mb
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