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Reference type: Journal
Authors: Zhao LL, Chen CB, Zhou J
Article Title: Selective binding of an imprinted polymer resulted from controlling cobalt coordination to nitric oxide.
Publication date: 2013
Journal: Journal of Applied Polymer Science
Volume: 127
Issue: (3)
Page numbers: 2160-2168.
DOI: 10.1002/app.37772

Abstract: In this article, the binding characteristics of the imprinted polymer P-1[CoII(salen)] (salen: bis(2-hydroxybenzaldehyde)ethylenediimine) to nitric oxide (NO) have been reported. P-1[CoII(salen)] was characterized by Fourier transform infrared analysis, thermogravimetric analysis, and differential scanning calorimetry. Batch-mode adsorption studies were carried out to investigate binding thermodynamics, kinetics, and selective recognition behavior of P-1[CoII(salen)] to NO. The kinetics study indicates that binding of the polymer to NO fits the first-order reaction kinetics with the rate constant k1 of 0.087 min-1. Langmuir and Freundlich equations were used to explain the equilibrium character of P-1[CoII(salen)] binding to NO. The r2 and χ2 values suggest that total amount of NO bound by P-1[CoII(salen)] can be best fitted by the Langmuir equation. The binding capacity (Bmax) of P-1[CoII(salen)] was calculated to be 76.28 μmol/g, very close to the experimental value, 75 μmol/g. The thermodynamics and selectivity experiments showed that the affinity of P-1[CoII(salen)] to NO was much higher than carbon dioxide (CO2) and oxygen (O2), suggesting that P-1[CoII(salen)] is a promising functional material for NO storage and NO sensing. 2012 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013
Template and target information: nitric oxide, NO
Author keywords: metal complex imprinted polymer, nitric oxide, kinetics, thermodynamics

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