Počet záznamů: 1
Sorption of single enantiomers and racemic mixture of (+/-)-.alpha.-pinene into Nafion membranes
- 1.0446752 - UMCH-V 2016 RIV US eng J - Článek v odborném periodiku
Brožová, Libuše - Žitka, Jan - Sysel, P. - Hovorka, Š. - Randová, A. - Storch, Jan - Kačírková, Marie - Izák, Pavel
Sorption of single enantiomers and racemic mixture of (+/-)-.alpha.-pinene into Nafion membranes.
Desalination and Water Treatment. Roč. 55, č. 11 (2015), s. 2967-2972. ISSN 1944-3994
Grant CEP: GA ČR(CZ) GAP106/12/0569
Institucionální podpora: RVO:61389013 ; RVO:67985858
Klíčová slova: sorption * racemic mixtures * pinene
Kód oboru RIV: CD - Makromolekulární chemie; CI - Průmyslová chemie a chemické inženýrství (UCHP-M)
Impakt faktor: 1.272, rok: 2015
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.
Trvalý link: http://hdl.handle.net/11104/0249334