Molecularly imprinted nanofiber membranes from modified polysulfone bearing aldehyde moiety

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TypeArticle
Proceedings titleProceedings of Annual Meeting of the Society of Polymer Science
ConferenceAnnual Meeting of the Society of Polymer Science: Osaka, Japan, May 25-27, 2011
SubjectMolecularly imprinting; Optical resolution; Chiral separation; Electrospray deposition; Membrane separation
AbstractIt is of interest to directly convert polymeric materials into molecularly imprinted nanofiber membranes by simultaneously applying an electrospray deposition and an alternative molecular imprinting. The membranes thus obtained was expected to show not only higher permselectivity but also higher flux value. To this end, molecularly imprinted nanofiber membranes were prepared from modified polysulfone bearing aldehyde moiety by adopting enantiomerically pure N-α-benzyloxycarbonyl-D-glutamic acid (Z-D-Glu) or N-α-benzyloxycarbonyl-L-glutamic acid (Z-L-Glu) as a print molecule. The fiber diameters of the molecularly imprinted nanofiber membranes thus obtained were 177 ± 64 nm. Enantioselective transport was studied by using concentration difference or potential difference as a driving force for membrane transport. The results obtained in the present study suggested that molecularly imprinted nanofiber membranes enhanced both permselectivity and flux, which are generally perceived to show a trade-off relationship. The flux for the present molecularly imprinted nanofiber membranes were about two orders of magnitude higher than the usual molecularly imprinted membranes, while the molecularly imprinted nanofiber membranes also showed permselectivity.
LanguageEnglish
AffiliationNRC Institute for Chemical Process and Environmental Technology; National Research Council Canada
Peer reviewedNo
NRC number52893
NPARC number18045569
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Record identifier91141fd3-6daf-475f-a9e9-7836f86657c2
Record created2011-06-09
Record modified2016-05-09
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