Репозиторий Dspace

Stimuli-Responsive Track-Etched Membranes for Separation of Water–Oil Emulsions

Показать сокращенную информацию

dc.contributor.author Muslimova, Indira B.
dc.contributor.author Zhatkanbayeva, Zh K.
dc.contributor.author Omertasov, Dias D.
dc.contributor.author Melnikova, Galina B.
dc.contributor.author Yeszhanov, Arman B.
dc.contributor.author Güven, Olgun
dc.contributor.author Chizhik, Sergei A.
dc.contributor.author Zdorovets, Maxim V.
dc.contributor.author Korolkov, Ilya V.
dc.date.accessioned 2024-09-17T09:39:41Z
dc.date.available 2024-09-17T09:39:41Z
dc.date.issued 2023
dc.identifier.citation 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. Stimuli-Responsive Track-Etched Membranes for Separation of Water–Oil Emulsions. Membranes 2023, 13, 523. https://doi.org/ 10.3390/membranes13050523 ru
dc.identifier.issn 2077-0375
dc.identifier.other doi.org/10.3390/membranes13050523
dc.identifier.uri http://rep.enu.kz/handle/enu/16485
dc.description.abstract In this work, we have developed a method for the preparation of pH-responsive tracketched 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%. ru
dc.language.iso en ru
dc.publisher Membranes ru
dc.relation.ispartofseries Volume 13;Issue 5
dc.subject stimuli-responsive polymers ru
dc.subject block copolymerization ru
dc.subject track-etched membranes ru
dc.subject surface modification ru
dc.subject graft polymerization ru
dc.subject water–oil emulsions separation ru
dc.title Stimuli-Responsive Track-Etched Membranes for Separation of Water–Oil Emulsions ru
dc.type Article ru


Файлы в этом документе

Данный элемент включен в следующие коллекции

Показать сокращенную информацию

Поиск в DSpace


Просмотр

Моя учетная запись