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- Title
Sorption of single enantiomers and racemic mixture of (+/−)-α-pinene into Nafion membranes.
- Authors
Brožová, Libuše; Žitka, Jan; Sysel, Petr; Hovorka, Štěpán; Randová, Alena; Storch, Jan; Kačírková, Marie; Izák, Pavel
- Abstract
The aim of this work was to elucidate the sorption of α-pinene in the membranes of solution-cast and melt-extruded Nafion. The extruded membrane was Nafion®115 in H+form (DuPont). The cast Nafion membrane was prepared by casting from a 20 wt.% solution of Nafion®(H+form) in lower aliphatic alcohols and water. (+)-α-pinene, (−)-α-pinene and racemic mixture sorption isotherms were determined by a gravimetric method using the sorption balance. It was found that the sorption of α-pinene in the Nafion membrane is a stereoselective process. The sorption of α-pinene in cast Nafion is much higher than in extruded Nafion. The sorption of (+)-α-pinene in the extruded Nafion membrane is quite low while the sorption of (−)-α-pinene approaches zero. The sorption of (−)-α-pinene in the cast Nafion membrane is high while the sorption of (+)-α-pinene is low.
- Subjects
SORPTION; ENANTIOMERS; ALIPHATIC alcohols; ATMOSPHERIC temperature; STEREOSELECTIVE reactions
- Publication
Desalination & Water Treatment, 2015, Vol 55, Issue 11, p2967
- ISSN
1944-3994
- Publication type
Article
- DOI
10.1080/19443994.2014.939496