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Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method

The preparation of membranes from polymer solutions by the phase inversion method, the immersion—precipitation technique has proved since the beginning of obtaining technological membranes the most versatile and simple possibility to create polymeric membrane nanostructures. Classically, the phase i...

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Autores principales: Bărdacă Urducea, Cristina, Nechifor, Aurelia Cristina, Dimulescu, Ioana Alina, Oprea, Ovidiu, Nechifor, Gheorghe, Totu, Eugenia Eftimie, Isildak, Ibrahim, Albu, Paul Constantin, Bungău, Simona Gabriela
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7760602/
https://www.ncbi.nlm.nih.gov/pubmed/33256125
http://dx.doi.org/10.3390/nano10122349
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author Bărdacă Urducea, Cristina
Nechifor, Aurelia Cristina
Dimulescu, Ioana Alina
Oprea, Ovidiu
Nechifor, Gheorghe
Totu, Eugenia Eftimie
Isildak, Ibrahim
Albu, Paul Constantin
Bungău, Simona Gabriela
author_facet Bărdacă Urducea, Cristina
Nechifor, Aurelia Cristina
Dimulescu, Ioana Alina
Oprea, Ovidiu
Nechifor, Gheorghe
Totu, Eugenia Eftimie
Isildak, Ibrahim
Albu, Paul Constantin
Bungău, Simona Gabriela
author_sort Bărdacă Urducea, Cristina
collection PubMed
description The preparation of membranes from polymer solutions by the phase inversion method, the immersion—precipitation technique has proved since the beginning of obtaining technological membranes the most versatile and simple possibility to create polymeric membrane nanostructures. Classically, the phase inversion technique involves four essential steps: Preparation of a polymer solution in the desired solvent, the formation of the polymer solution film on a flat support, the immersion of the film in a coagulation bath containing polymer solvents, and membrane conditioning. All phase inversion stages are important for the prepared membrane’s nanostructure and have been studied in detail for more than six decades. In this paper, we explored, through an electrochemical technique, the influence of the contact time with the polymer film’s environment until the introduction into the coagulation bath. The system chosen for membrane preparation is polysulfone-dimethylformamide-aqueous ethanol solution (PSf-DMF-EW). The obtained nanostructured membranes were characterized morphologically and structurally by scanning electron microscopy (SEM) and thermal analysis (TA), and in terms of process performance through water permeation and bovine serum albumin retention (BSA). The membrane characteristics were correlated with the polymeric film exposure time to the environment until the contact with the coagulation bath, following the diagram of the electrochemical parameters provided by the electrochemical technique.
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spelling pubmed-77606022020-12-26 Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method Bărdacă Urducea, Cristina Nechifor, Aurelia Cristina Dimulescu, Ioana Alina Oprea, Ovidiu Nechifor, Gheorghe Totu, Eugenia Eftimie Isildak, Ibrahim Albu, Paul Constantin Bungău, Simona Gabriela Nanomaterials (Basel) Article The preparation of membranes from polymer solutions by the phase inversion method, the immersion—precipitation technique has proved since the beginning of obtaining technological membranes the most versatile and simple possibility to create polymeric membrane nanostructures. Classically, the phase inversion technique involves four essential steps: Preparation of a polymer solution in the desired solvent, the formation of the polymer solution film on a flat support, the immersion of the film in a coagulation bath containing polymer solvents, and membrane conditioning. All phase inversion stages are important for the prepared membrane’s nanostructure and have been studied in detail for more than six decades. In this paper, we explored, through an electrochemical technique, the influence of the contact time with the polymer film’s environment until the introduction into the coagulation bath. The system chosen for membrane preparation is polysulfone-dimethylformamide-aqueous ethanol solution (PSf-DMF-EW). The obtained nanostructured membranes were characterized morphologically and structurally by scanning electron microscopy (SEM) and thermal analysis (TA), and in terms of process performance through water permeation and bovine serum albumin retention (BSA). The membrane characteristics were correlated with the polymeric film exposure time to the environment until the contact with the coagulation bath, following the diagram of the electrochemical parameters provided by the electrochemical technique. MDPI 2020-11-26 /pmc/articles/PMC7760602/ /pubmed/33256125 http://dx.doi.org/10.3390/nano10122349 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bărdacă Urducea, Cristina
Nechifor, Aurelia Cristina
Dimulescu, Ioana Alina
Oprea, Ovidiu
Nechifor, Gheorghe
Totu, Eugenia Eftimie
Isildak, Ibrahim
Albu, Paul Constantin
Bungău, Simona Gabriela
Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method
title Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method
title_full Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method
title_fullStr Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method
title_full_unstemmed Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method
title_short Control of Nanostructured Polysulfone Membrane Preparation by Phase Inversion Method
title_sort control of nanostructured polysulfone membrane preparation by phase inversion method
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7760602/
https://www.ncbi.nlm.nih.gov/pubmed/33256125
http://dx.doi.org/10.3390/nano10122349
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