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Reference type: Journal
Authors: Inoue N, Ooya T, Toshifumi T
Article Title: Hydrophilic molecularly imprinted polymers for bisphenol A prepared in aqueous solution.
Publication date: 2013
Journal: Microchimica Acta
Volume: 180
Issue: (15-16)
Page numbers: 1387-1392.
DOI: 10.1007/s00604-013-0996-5

Abstract: We have prepared a hydrophilic molecularly imprinted polymer (MIP) for the hydrophobic compound bisphenol A (BPA) in aqueous solution using 3-acrylamido-N,N,N-trimethylpropan-1-aminium chloride (AMTC) as the functional monomer. Under redox-polymerization conditions, BPA forms an ion-pair with AMTC, which was confirmed by 1H-NMR titration. The imprinting effect in aqueous solution was evaluated by comparison of this material with the corresponding non-imprinted polymer (NIP) and with a control polymer (CP) bearing no AMTC. The MIP showed the highest activity among the three polymers, and the imprinting factors as calculated from the amount of BPA bound to the MIP divided by the amounts bound to NIP and CP, respectively, are 1.8 and 6.0. The MIP was selective for BPA in aqueous solution, while structurally related compounds are not recognized. Such a selectivity for a hydrophobic compound is rarely observed in aqueous medium because non-specific binding of BPA inevitably leads to hydrophobic interaction
Template and target information: bisphenol A, BPA
Author keywords: molecular imprinting, bisphenol A, Hydrophilic molecularly imprinted polymers, molecular recognition

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