Sorption of enantiomers and alcohols into Nafion (R) and the role of air humidity in the experimental data evaluation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F15%3A43899488" target="_blank" >RIV/60461373:22310/15:43899488 - isvavai.cz</a>
Alternative codes found
RIV/60461373:22340/15:43899488 RIV/60461373:22330/15:43899488
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S1383586615001446" target="_blank" >http://www.sciencedirect.com/science/article/pii/S1383586615001446</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.seppur.2015.02.045" target="_blank" >10.1016/j.seppur.2015.02.045</a>

Result language
angličtina
Original language name
Sorption of enantiomers and alcohols into Nafion (R) and the role of air humidity in the experimental data evaluation
Original language description
Two enantiomers may exhibit completely different biological or pharmacological activities; therefore, the resolution of the enantiomers from a racemic mixture is an important task. The results of the total sorption measurements for the individual (+) and(-) liquid enantiomers from the enantiomeric pair revealed that there is a difference between extents of their sorption in Nafion. The difference between liquid sorption of the (+) and (-) enantiomers of small molecules, such as the methyl lactates or 2-butanols, is higher than in the case of larger molecules, such as phenylethanols and methylbenzyl amines. This result could be explained by the hypothesis that the size of the chiral molecule must fit like a puzzle piece into the Nafion helical polymernetwork. This hypothesis was supported by the 19F MAS NMR analysis, which confirmed the helical structure of Nafion. Further, the branching of the molecules significantly influences the extent of sorption of the liquid in Nafion, as shown
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CF - Physical chemistry and theoretical chemistry
OECD FORD branch
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Project
<a href="/en/project/GAP106%2F12%2F0569" target="_blank" >GAP106/12/0569: Membrane separation – the more effective separation of a pure enantiomer from a racemic mixture</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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