Formation of Polysulfone Hollow Fiber Membranes Using the Systems with Lower Critical Solution Temperature
This study deals with the investigation of the phase state of the polymer systems from polysulfone (PSF) with the addition of polyethylene glycol (PEG-400, M<sub>n</sub> = 400 g·mol<sup>−1</sup>) and polyvinylpyrrolidone (PVP K-30, M<sub>n</sub> = 40,000 g·mol<...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-05-01
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| Series: | Fibers |
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| Online Access: | https://www.mdpi.com/2079-6439/9/5/28 |
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| author | Tatiana V. Plisko Alexandr V. Bildyukevich Liang Zhao Weiqing Huang Vladimir V. Volkov Zuohua Huang |
| author_facet | Tatiana V. Plisko Alexandr V. Bildyukevich Liang Zhao Weiqing Huang Vladimir V. Volkov Zuohua Huang |
| author_sort | Tatiana V. Plisko |
| collection | DOAJ |
| description | This study deals with the investigation of the phase state of the polymer systems from polysulfone (PSF) with the addition of polyethylene glycol (PEG-400, M<sub>n</sub> = 400 g·mol<sup>−1</sup>) and polyvinylpyrrolidone (PVP K-30, M<sub>n</sub> = 40,000 g·mol<sup>−1</sup>) in N,N-dimethylacetamide (DMA), which feature lower critical solution temperatures (LCSTs). A fragment of the phase state diagram of the system PSF —PEG-400—PVP K-30—DMA was experimentally constructed in the following range of component concentrations: PSF 20–24 wt.%, PEG-400—35–38 wt.% and PVP—0–8 wt.%. It has been established that PVP addition substantially reduces the phase separation temperature down to 50–60 °C. Based on the obtained phase diagrams, a method for preparation of highly permeable hollow fiber membranes from PSF, which involves the processing of the dope solution at a temperature close to the LCST and the temperature of the bore fluid above the LCST, was proposed. Hollow fiber membranes with pure water flux of 1200 L·m<sup>−2</sup>·h<sup>−1</sup> and a sponge-like macrovoid-free structure were obtained via LCST-thermally induced phase separation by free fall spinning technique. |
| first_indexed | 2024-03-10T11:43:56Z |
| format | Article |
| id | doaj.art-05882089880a4308b97493705335b5d5 |
| institution | Directory Open Access Journal |
| issn | 2079-6439 |
| language | English |
| last_indexed | 2024-03-10T11:43:56Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Fibers |
| spelling | doaj.art-05882089880a4308b97493705335b5d52023-11-21T18:10:58ZengMDPI AGFibers2079-64392021-05-01952810.3390/fib9050028Formation of Polysulfone Hollow Fiber Membranes Using the Systems with Lower Critical Solution TemperatureTatiana V. Plisko0Alexandr V. Bildyukevich1Liang Zhao2Weiqing Huang3Vladimir V. Volkov4Zuohua Huang5Institute of Physical Organic Chemistry, National Academy of Sciences of Belarus, 13 Surganov Str., 220072 Minsk, BelarusInstitute of Physical Organic Chemistry, National Academy of Sciences of Belarus, 13 Surganov Str., 220072 Minsk, BelarusHenan Academy of Sciences, Institute of Chemistry, 56 Hongzhuan Road, Jinshui District, Zhengzhou 450002, ChinaHenan Academy of Sciences, Institute of Chemistry, 56 Hongzhuan Road, Jinshui District, Zhengzhou 450002, ChinaA.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29, Leninsky Prospect, 119991 Moscow, RussiaHenan Academy of Sciences, Institute of Chemistry, 56 Hongzhuan Road, Jinshui District, Zhengzhou 450002, ChinaThis study deals with the investigation of the phase state of the polymer systems from polysulfone (PSF) with the addition of polyethylene glycol (PEG-400, M<sub>n</sub> = 400 g·mol<sup>−1</sup>) and polyvinylpyrrolidone (PVP K-30, M<sub>n</sub> = 40,000 g·mol<sup>−1</sup>) in N,N-dimethylacetamide (DMA), which feature lower critical solution temperatures (LCSTs). A fragment of the phase state diagram of the system PSF —PEG-400—PVP K-30—DMA was experimentally constructed in the following range of component concentrations: PSF 20–24 wt.%, PEG-400—35–38 wt.% and PVP—0–8 wt.%. It has been established that PVP addition substantially reduces the phase separation temperature down to 50–60 °C. Based on the obtained phase diagrams, a method for preparation of highly permeable hollow fiber membranes from PSF, which involves the processing of the dope solution at a temperature close to the LCST and the temperature of the bore fluid above the LCST, was proposed. Hollow fiber membranes with pure water flux of 1200 L·m<sup>−2</sup>·h<sup>−1</sup> and a sponge-like macrovoid-free structure were obtained via LCST-thermally induced phase separation by free fall spinning technique.https://www.mdpi.com/2079-6439/9/5/28hollow fiber membranesultrafiltrationpolysulfonelow critical solution temperaturenon-solvent-induced phase separationtemperature-induced phase separation |
| spellingShingle | Tatiana V. Plisko Alexandr V. Bildyukevich Liang Zhao Weiqing Huang Vladimir V. Volkov Zuohua Huang Formation of Polysulfone Hollow Fiber Membranes Using the Systems with Lower Critical Solution Temperature Fibers hollow fiber membranes ultrafiltration polysulfone low critical solution temperature non-solvent-induced phase separation temperature-induced phase separation |
| title | Formation of Polysulfone Hollow Fiber Membranes Using the Systems with Lower Critical Solution Temperature |
| title_full | Formation of Polysulfone Hollow Fiber Membranes Using the Systems with Lower Critical Solution Temperature |
| title_fullStr | Formation of Polysulfone Hollow Fiber Membranes Using the Systems with Lower Critical Solution Temperature |
| title_full_unstemmed | Formation of Polysulfone Hollow Fiber Membranes Using the Systems with Lower Critical Solution Temperature |
| title_short | Formation of Polysulfone Hollow Fiber Membranes Using the Systems with Lower Critical Solution Temperature |
| title_sort | formation of polysulfone hollow fiber membranes using the systems with lower critical solution temperature |
| topic | hollow fiber membranes ultrafiltration polysulfone low critical solution temperature non-solvent-induced phase separation temperature-induced phase separation |
| url | https://www.mdpi.com/2079-6439/9/5/28 |
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