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Reference type: Journal
Authors: Mizushima H, Yoshikawa M, Li NW, Robertson GP, Guiver MD
Article Title: Electrospun nanofiber membranes from polysulfones with chiral selector aimed for optical resolution.
Publication date: 2012
Journal: European Polymer Journal
Volume: 48
Issue: (10)
Page numbers: 1717-1725.
DOI: 10.1016/j.eurpolymj.2012.07.003
Alternative URL: http://www.sciencedirect.com/science/article/pii/S0014305712002078

Abstract: Polysulfones with three types of alanyl residue, such as N-α-acetylalanine (Ac-Ala-OH), N-α-benzoylalanine (Bzo-Ala-OH), and N-α-benzyloxycarbonylalanine (Z-Ala-OH), as chiral selectors were prepared by polymer reaction. The resulting modified polysulfones showed chiroptical properties, indicating that the chiral selector residues were successfully introduced into the polysulfone. Nanofiber membranes prepared from the polymeric materials showed adsorption selectivity toward mixtures of racemic Glu, which were adopted as model racemates. Flux values for the nanofiber membranes were enhanced two to three orders of magnitude in comparison with the corresponding typical membranes, but without reduction in permselectivity. In the present study, it is shown that nanofiber is a suitable membrane form not only for molecularly imprinted membranes, but it exhibits enhanced throughput in comparison with typical dense membranes without concurrent reduction in permselectivity
Author keywords: chiral separation, electrospray deposition, membrane, Nanofiber fabric, optical resolution, polysulfone

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