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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...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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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. |
format | Online Article Text |
id | pubmed-7760602 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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