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Reference type: Journal
Authors: Xu ZF, Xu L, Kuang DZ, Zhang FX, Wang JQ
Article Title: Exploiting β-cyclodextrin as functional monomer in molecular imprinting for achieving recognition in aqueous media.
Publication date: 2008
Journal: Materials Science and Engineering: C
Volume: 28
Issue: (8)
Page numbers: 1516-1521.
DOI: 10.1016/j.msec.2008.04.007
Alternative URL: http://www.sciencedirect.com/science/article/B6TXG-4S9P5N9-4/2/e10e9ec387f11fba10ff1bdb22cc7034

Abstract: A series of molecularly imprinted polymers (MIPs) for 4,4'-(1,4-phenylenediisopropylidene)bisphenol (BPP) were prepared by using β-cyclodextrin (β-CD) as functional monomer, toluene 2,4-diisocyanate (TDI) or 4,4'-Diphenylmethane diisocyanate (DDI) as the cross-linker. The results of binding experiments showed that the MIPs can bind the template selectively in aqueous media. The binding specificity mechanism of the polymers was investigated in detail. The template molecule is too large and cannot be included in the cavity of one β-CD molecule. The mutual orientation of β-CD molecules in the imprinted polymers is regulated by molecular imprinting, so that they can cooperatively bind the template molecule. It is suggested that the major contribution to the recognition ability of the imprinted polymer was the stereo-shape effect inherent in the MIPs. The study indicated that hydrophobic effects play an important role in the recognition process
Template and target information: 4,4'-(1,4-phenylenediisopropylidene)bisphenol
Author keywords: molecular imprinting, 4,4'-(1,4-phenylenediisopropylidene)bisphenol, β-cyclodextrin, recognition ability, hydrophobic effect


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