Stimuli-Responsive Track-Etched Membranes for Separation of Water–Oil Emulsions
Электронный научный архив УРФУ
Информация об архиве | Просмотр оригинала| Поле | Значение | |
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Stimuli-Responsive Track-Etched Membranes for Separation of Water–Oil Emulsions
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| Автор |
Muslimova, I. B.
Zhatkanbayeva, Z. K. Omertasov, D. D. Melnikova, G. B. Yeszhanov, A. B. Güven, O. Chizhik, S. A. Zdorovets, M. V. Korolkov, I. V. |
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| Тематика |
BLOCK COPOLYMERIZATION
GRAFT POLYMERIZATION STIMULI-RESPONSIVE POLYMERS SURFACE MODIFICATION TRACK-ETCHED MEMBRANES WATER–OIL EMULSIONS SEPARATION COPOLYMERIZATION EMULSIFICATION ETHYLENE FUNCTIONAL POLYMERS GRAFTING (CHEMICAL) HYDROPHOBICITY MEMBRANES MOLAR RATIO OSTWALD RIPENING STYRENE BLOCK COPOLYMERIZATION EMULSION SEPARATIONS GRAFT POLYMERIZATION OIL EMULSIONS PH-RESPONSIVE STIMULI-RESPONSIVE POLYMER SURFACE-MODIFICATION TRACK-ETCHED MEMBRANE VINYLPYRIDINE WATER–OIL EMULSION SEPARATION CONTACT ANGLE |
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| Описание |
In this work, we have developed a method for the preparation of pH-responsive track-etched membranes (TeMs) based on poly(ethylene terephthalate) (PET) with pore diameters of 2.0 ± 0.1 μm of cylindrical shape by RAFT block copolymerization of styrene (ST) and 4-vinylpyridine (4-VP) to be used in the separation of water–oil emulsions. The influence of the monomer concentration (1–4 vol%), the molar ratio of RAFT agent: initiator (1:2–1:100) and the grafting time (30–120 min) on the contact angle (CA) was studied. The optimal conditions for ST and 4-VP grafting were found. The obtained membranes showed pH-responsive properties: at pH 7–9, the membrane was hydrophobic with a CA of 95°; at pH 2, the CA decreased to 52°, which was due to the protonated grafted layer of poly-4-vinylpyridine (P4VP), which had an isoelectric point of pI = 3.2. The obtained membranes with controlled hydrophobic-hydrophilic properties were tested by separating the direct and reverse “oil–water” emulsions. The stability of the hydrophobic membrane was studied for 8 cycles. The degree of purification was in the range of 95–100%. © 2023 by the authors.
Belarusian Republican Foundation for Fundamental Research, BRFFR: T22MS-029; Ministry of Education and Science of the Republic of Kazakhstan: AP14972816 The article was prepared as part of the implementation of the scientific project of the grant funding Project “Young scientist” for 2022–2024 of the Science Committee of the Ministry of Science and Higher Education of the Republic of Kazakhstan AP14972816 “Stimuli-responsive track-etched membranes for separation of water–oil emulsions” and BRFFR T22MS-029 (contract dated 4 May 2022). |
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| Дата |
2024-04-05T16:22:52Z
2024-04-05T16:22:52Z 2023 |
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| Тип |
Article
Journal article (info:eu-repo/semantics/article) |info:eu-repo/semantics/publishedVersion |
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| Идентификатор |
Muslimova, IB, Zhatkanbayeva, ZK, Omertasov, DD, Melnikova, GB, Yeszhanov, AB, Güven, O, Chizhik, SA, Zdorovets, MV & Korolkov, IV 2023, 'Stimuli-Responsive Track-Etched Membranes for Separation of Water–Oil Emulsions', Membranes, Том. 13, № 5, 523. https://doi.org/10.3390/membranes13050523
Muslimova, I. B., Zhatkanbayeva, Z. K., Omertasov, D. D., Melnikova, G. B., Yeszhanov, A. B., Güven, O., Chizhik, S. A., Zdorovets, M. V., & Korolkov, I. V. (2023). Stimuli-Responsive Track-Etched Membranes for Separation of Water–Oil Emulsions. Membranes, 13(5), [523]. https://doi.org/10.3390/membranes13050523 2077-0375 Final All Open Access, Gold, Green https://www.scopus.com/inward/record.uri?eid=2-s2.0-85160293626&doi=10.3390%2fmembranes13050523&partnerID=40&md5=4d5495cde10cc10cf92838cb4c4babcd https://www.mdpi.com/2077-0375/13/5/523/pdf?version=1684314775 http://elar.urfu.ru/handle/10995/130508 10.3390/membranes13050523 85160293626 001033212400001 |
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| Язык |
en
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| Права |
Open access (info:eu-repo/semantics/openAccess)
cc-by https://creativecommons.org/licenses/by/4.0/ |
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| Формат |
application/pdf
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| Издатель |
MDPI
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| Источник |
Membranes
Membranes |
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