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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/60461373:22340/15:43899488 RIV/60461373:22330/15:43899488

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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

Název v anglickém jazyce

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

Popis výsledku anglicky

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

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CF - Fyzikální chemie a teoretická chemie

OECD FORD obor

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Projekt

<a href="/cs/project/GAP106%2F12%2F0569" target="_blank" >GAP106/12/0569: Membránové separace - efektivnější separace čistých enantiomerů z racemických směsí</a><br>

Návaznosti

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

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

Separation and Purification technology

ISSN

1383-5866

e-ISSN

—

Svazek periodika

144

Číslo periodika v rámci svazku

April 15

Stát vydavatele periodika

BE - Belgické království

Počet stran výsledku

8

Strana od-do

232-239

Kód UT WoS článku

000352664300029

EID výsledku v databázi Scopus

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