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Nafion membranes modified by cationic cyclodextrin derivatives for enantioselective separation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F21%3A10428480" target="_blank" >RIV/00216208:11310/21:10428480 - isvavai.cz</a>

  • Alternative codes found

    RIV/67985858:_____/21:00540919

  • Result on the web

    <a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=kcSJEiuD9J" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=kcSJEiuD9J</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.seppur.2021.118538" target="_blank" >10.1016/j.seppur.2021.118538</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Nafion membranes modified by cationic cyclodextrin derivatives for enantioselective separation

  • Original language description

    Nafion117 (R) 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.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10401 - Organic chemistry

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Separation and Purification Technology

  • ISSN

    1383-5866

  • e-ISSN

  • Volume of the periodical

    266

  • Issue of the periodical within the volume

    July

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    10

  • Pages from-to

    118538

  • UT code for WoS article

    000647567000006

  • EID of the result in the Scopus database

    2-s2.0-85102647289