Premium
Stereoselective Behavior of Nafion® Membranes towards (+)‐ α ‐Pinene and (−)‐ α ‐Pinene
Author(s) -
Brožová Libuše,
Žitka Jan,
Sysel Petr,
Hovorka Štěpán,
Randová Alena,
Storch Jan,
Kačírková Marie,
Izák Pavel
Publication year - 2015
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201400621
Subject(s) - membrane , nafion , sorption , pinene , chemical engineering , magic angle spinning , chemistry , solvent , chromatography , materials science , polymer chemistry , analytical chemistry (journal) , organic chemistry , nuclear magnetic resonance spectroscopy , adsorption , electrochemistry , biochemistry , electrode , engineering
α ‐Pinene enantiomers were sorbed in Nafion® membranes. The membranes included a commercial extruded Nafion® 115 membrane as well as membranes prepared by casting a Nafion® solution, evaporating the solvent, and a thermal treatment at different temperatures. The microstructure of membranes was studied by small‐angle and wide‐angle X‐ray scattering, and magic‐angle spinning nuclear magnetic resonance spectroscopy. The change of membrane weight during the sorption process was determined with a sorption microbalance. Noticeable differences concerning the sorption behavior of the various membranes could be stated. The sorption of (+)‐ α ‐pinene and (−)‐ α ‐pinene in an extruded Nafion® membrane turned out to be rather low.