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Nafion membranes modified by cationic cyclodextrin derivatives for enantioselective separation.
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SYSNO ASEP 0540919 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Nafion membranes modified by cationic cyclodextrin derivatives for enantioselective separation. Tvůrce(i) Gaálová, Jana (UCHP-M) RID, SAI, ORCID
Michel, Marine (UCHP-M)
Bourassi, Mahdi (UCHP-M) ORCID, RID, SAI
Ladewing, B.P. (GB)
Kasal, P. (CZ)
Jindřich, J. (CZ)
Izák, Pavel (UCHP-M) RID, ORCID, SAIČíslo článku 118538 Zdroj.dok. Separation and Purification Technology. - : Elsevier - ISSN 1383-5866
Roč. 266, Jul 1 (2021)Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova nafion membranes ; cyclodextrin derivatives ; strong ionic binding Vědní obor RIV CI - Průmyslová chemie a chemické inženýrství Obor OECD Chemical process engineering CEP GA20-09980S GA ČR - Grantová agentura ČR GJ19-08153Y GA ČR - Grantová agentura ČR FV10082 GA MPO - Ministerstvo průmyslu a obchodu Způsob publikování Open access s časovým embargem (02.07.2023) Institucionální podpora UCHP-M - RVO:67985858 UT WOS 000647567000006 EID SCOPUS 85102647289 DOI 10.1016/j.seppur.2021.118538 Anotace Nafion117® membranes modified by three cationic cyclodextrin (CD) derivatives have been prepared by strong ionic bonding. All CD derivatives contained bis(methylimidazolium) (MIM2) cationic anchor covalently bound to the CD unit, either using no spacer or using diethylene glycol (DEG) or tetraethylene glycol (TEEG) spacers. The modified membranes were tested in chiral separation of a model racemic mixture (d/l-tryptophan) from water. Different experimental set-ups for characterising membranes in enantioselective separation – pertraction, two kinds of sorption, and pressure-driven membrane separation – have been described and rigorously compared. The membranes CD-MIM2, CD-DEG-MIM2 have reached the highest enantiomeric excess, 14 and 44% respectively, in 280 days. The lowest performance of the CD-TEEG-MIM2 membrane, with the long spacer, has been visibly ameliorated by applying pertraction, enantiomeric excess rose from 2 to 27% in 80 days. Even though sorption played the main role in pertraction, this process substantially enhanced the separation of racemic mixtures. The pressure-driven approach has allowed the operation to be continuous and faster, which has the potential for continuous large-scale production of enantiopure compounds and could pave the way for many more commercial applications, satisfying the considerable demand for large-scale chiral separation techniques. Pracoviště Ústav chemických procesů Kontakt Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227 Rok sběru 2022 Elektronická adresa http://hdl.handle.net/11104/0318604
Počet záznamů: 1