Articles producció científica> Enginyeria Química

Preparation and characterization of UV-curable acrylic membranes embedding natural antioxidants

  • Datos identificativos

    Identificador: imarina:6389811
    Autores:
    Rajczak ETylkowski BConstantí MHaponska MTrusheva BMalucelli GGiamberini M
    Resumen:
    © 2020 by the authors. We examine the behaviour of acrylic resin-based membranes containing natural antioxidants, such as Galla Chinensis tea powder extract (TP) and Taiwanese green propolis (TGP), in different concentrations ranging between 5 and 20 wt %. Membrane morphology was investigated by means of Environmental Scanning Electron Microscopy (ESEM), while the UV-curing reaction was monitored by Fourier-Transform Infra-red (FTIR) spectroscopy. In most cases Thermogravimetric (TG), Differential Scanning Calorimetric (DSC) and Dynamo-mechanical Thermal (DMT) analyses showed that the desirable characteristics of the UV-cured acrylic resin are not substantially altered by the presence of the organic fillers. The release kinetics of polyphenols and flavonoids, determined in water for TP-containing membranes (ETx) and in ethanol/water mixture (7:3 v/v) for TGP-containing ones (EPx), was satisfactory, reaching a plateau after 24 h. Finally, preliminary antibacterial tests against S. Epidermidis were performed on the membranes with higher additive amount and gave positive results for ET-type; on the contrary, no inhibitory effect was observed for the tested EP-type membranes.
  • Otros:

    Autor según el artículo: Rajczak E; Tylkowski B; Constantí M; Haponska M; Trusheva B; Malucelli G; Giamberini M
    Departamento: Enginyeria Química
    Autor/es de la URV: Constantí Garriga, Magdalena / Giamberini, Marta / Tylkowski, Bartosz
    Palabras clave: Toxicity Therapy Tea powder Propolis Matrix Green tea Galla-chinensis Films Extracts Constituents Biological-properties Antibacterial activity Acrylic membrane propolis antibacterial activity acrylic membrane
    Resumen: © 2020 by the authors. We examine the behaviour of acrylic resin-based membranes containing natural antioxidants, such as Galla Chinensis tea powder extract (TP) and Taiwanese green propolis (TGP), in different concentrations ranging between 5 and 20 wt %. Membrane morphology was investigated by means of Environmental Scanning Electron Microscopy (ESEM), while the UV-curing reaction was monitored by Fourier-Transform Infra-red (FTIR) spectroscopy. In most cases Thermogravimetric (TG), Differential Scanning Calorimetric (DSC) and Dynamo-mechanical Thermal (DMT) analyses showed that the desirable characteristics of the UV-cured acrylic resin are not substantially altered by the presence of the organic fillers. The release kinetics of polyphenols and flavonoids, determined in water for TP-containing membranes (ETx) and in ethanol/water mixture (7:3 v/v) for TGP-containing ones (EPx), was satisfactory, reaching a plateau after 24 h. Finally, preliminary antibacterial tests against S. Epidermidis were performed on the membranes with higher additive amount and gave positive results for ET-type; on the contrary, no inhibitory effect was observed for the tested EP-type membranes.
    Áreas temáticas: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física
    Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
    ISSN: 2073-4360
    Direcció de correo del autor: bartosz.tylkowski@urv.cat magdalena.constanti@urv.cat marta.giamberini@urv.cat
    Identificador del autor: 0000-0002-4163-0178 0000-0002-3547-4199 0000-0001-8278-3552
    Fecha de alta del registro: 2023-02-19
    Volumen de revista: 12
    Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
    Enlace a la fuente original: https://www.mdpi.com/2073-4360/12/2/358
    Referencia al articulo segun fuente origial: Polymers. 12 (2):
    Referencia de l'ítem segons les normes APA: Rajczak E; Tylkowski B; Constantí M; Haponska M; Trusheva B; Malucelli G; Giamberini M (2020). Preparation and characterization of UV-curable acrylic membranes embedding natural antioxidants. Polymers, 12(2), -. DOI: 10.3390/polym12020358
    URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
    DOI del artículo: 10.3390/polym12020358
    Entidad: Universitat Rovira i Virgili
    Año de publicación de la revista: 2020
    Tipo de publicación: Journal Publications
  • Palabras clave:

    Chemistry (Miscellaneous),Polymer Science,Polymers and Plastics
    Toxicity
    Therapy
    Tea powder
    Propolis
    Matrix
    Green tea
    Galla-chinensis
    Films
    Extracts
    Constituents
    Biological-properties
    Antibacterial activity
    Acrylic membrane
    propolis
    antibacterial activity
    acrylic membrane
    Polymers and plastics
    Polymer science
    Odontología
    General chemistry
    Farmacia
    Engenharias ii
    Ciências biológicas ii
    Chemistry (miscellaneous)
    Chemistry (all)
    Biotecnología
    Astronomia / física
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