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RESEARCH PRODUCT
Binding characteristics of molecularly imprinted polymers based on fungicides in hydroalcoholic media
Naim OuainiAdrien LerbretElias Bou-marounPhilippe CayotManal Bitarsubject
chemistry.chemical_classificationLangmuirIprodioneEthylene glycol dimethacrylateMolecularly imprinted polymerFiltration and SeparationSorptionPolymerAnalytical Chemistrychemistry.chemical_compoundchemistryMethacrylamideOrganic chemistryFreundlich equationNuclear chemistrydescription
An iprodione-imprinted polymer was prepared by copolymerization of methacrylamide and ethylene glycol dimethacrylate using a noncovalent imprinting approach. Methacrylamide was chosen using molecular dynamics simulations. To concentrate iprodione from hydro-alcoholic solutions, batch sorption of iprodione on the imprinted polymer were conducted. The equilibrium time for iprodione sorption is 20 min, and the corresponding kinetic mechanism follows the pseudo-second order indicating a strong interaction between iprodione and the imprinted polymer. Langmuir, Freundlich, and Dubinin-Radushkevich models were used to fit the isotherm of iprodione sorption. The imprinted polymer was found to be more efficient than the nonimprinted polymer for the uptake of iprodione, as revealed by its higher adsorption energy, affinity, and capacity. Finally, a selectivity study was conducted on the imprinted and the nonimprinted polymers to sorb three fungicides. It shows that the imprinted polymer could be used as a preconcentration phase in a multiresidue analysis of fungicides in hydroalcoholic medium.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2015-09-24 | Journal of Separation Science |