Autor segons l'article: M. Haponska; A. Trojanowska,;A. Nogalska; R.Jastrzab; T. Gumi; B. Tylkowski
Departament: Enginyeria Química
e-ISSN: 2073-4360
Autor/s de la URV: GUMÍ CABALLERO, TÀNIA / NOGALSKA, ADRIANNA / Tylkowski, Bartosz
Paraules clau: Pvdf membrane Polymer molecular weight Coagulation bath temperature pvdf membrane coagulation bath temperature
Resum: 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
Àrees temàtiques: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 20734360
Adreça de correu electrònic de l'autor: bartosz.tylkowski@urv.cat
Identificador de l'autor: 0000-0002-4163-0178
Data d'alta del registre: 2024-09-07
Volum de revista: 9
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.mdpi.com/2073-4360/9/12/718
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
Referència a l'article segons font original: Polymers. 9 (12): 718-731
Referència 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 de l'article: 10.3390/polym9120718
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2017
Tipus de publicació: Journal Publications
Repositori URV