Autor según el artículo: M. Haponska; A. Trojanowska,;A. Nogalska; R.Jastrzab; T. Gumi; B. Tylkowski
Departamento: Enginyeria Química
e-ISSN: 2073-4360
Autor/es de la URV: GUMÍ CABALLERO, TÀNIA / NOGALSKA, ADRIANNA / Tylkowski, Bartosz
Palabras clave: Pvdf membrane Polymer molecular weight Coagulation bath temperature pvdf membrane coagulation bath temperature
Resumen: In this study, we successfully prepared nine non-woven, supported polyvinylidene fluoride (PVDF) membranes, using a phase inversion precipitation method, starting from a 15 wt % PVDF solution in N-methyl-2-pyrrolidone. Various membrane morphologies were obtained by using (1) PVDF polymers, with diverse molecular weights ranging from 300 to 700 kDa, and (2) different temperature coagulation baths (20, 40, and 60 ± 2 °C) used for the film precipitation. An environmental scanning electron microscope (ESEM) was used for surface and cross-section morphology characterization. An atomic force microscope (AFM) was employed to investigate surface roughness, while a contact angle (CA) instrument was used for membrane hydrophobicity studies. Fourier transform infrared spectroscopy (FTIR) results show that the fabricated membranes are formed by a mixture of TGTG' chains, in α phase crystalline domains, and all-TTTT trans planar zigzag chains characteristic to β phase. Moreover, generated results indicate that the phases' content and membrane morphologies depend on the polymer molecular weight and conditions used for the membranes' preparation. The diversity of fabricated membranes could be applied by the End User Industries for different applications
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: 20734360
Direcció de correo del autor: bartosz.tylkowski@urv.cat
Identificador del autor: 0000-0002-4163-0178
Fecha de alta del registro: 2024-09-07
Volumen de revista: 9
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://www.mdpi.com/2073-4360/9/12/718
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Polymers. 9 (12): 718-731
Referencia de l'ítem segons les normes APA: M. Haponska; A. Trojanowska,;A. Nogalska; R.Jastrzab; T. Gumi; B. Tylkowski (2017). PVDF Membrane Morphology¿Influence of Polymer Molecular Weight and Preparation Temperature. Polymers, 9(12), 718-731. DOI: 10.3390/polym9120718
DOI del artículo: 10.3390/polym9120718
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2017
Tipo de publicación: Journal Publications
Repositori URV