Author, as appears in the article.: M. Haponska; A. Trojanowska,;A. Nogalska; R.Jastrzab; T. Gumi; B. Tylkowski
Department: Enginyeria Química
e-ISSN: 2073-4360
URV's Author/s: GUMÍ CABALLERO, TÀNIA / NOGALSKA, ADRIANNA / Tylkowski, Bartosz
Keywords: Pvdf membrane Polymer molecular weight Coagulation bath temperature pvdf membrane coagulation bath temperature
Abstract: 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
Thematic Areas: Polymers and plastics Polymer science Odontología General chemistry Farmacia Engenharias ii Ciências biológicas ii Chemistry (miscellaneous) Chemistry (all) Biotecnología Astronomia / física
licence for use: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 20734360
Author's mail: bartosz.tylkowski@urv.cat
Author identifier: 0000-0002-4163-0178
Record's date: 2024-09-07
Journal volume: 9
Papper version: info:eu-repo/semantics/publishedVersion
Link to the original source: https://www.mdpi.com/2073-4360/9/12/718
Licence document URL: https://repositori.urv.cat/ca/proteccio-de-dades/
Papper original source: Polymers. 9 (12): 718-731
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
Article's DOI: 10.3390/polym9120718
Entity: Universitat Rovira i Virgili
Journal publication year: 2017
Publication Type: Journal Publications
Repositori URV