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Reference type: Journal
Authors: Lv YQQ, Lin ZX, Feng W, Tan TW
Article Title: Evaluation of the Polymerization and Recognition Mechanism for Phenol Imprinting SPE.
Publication date: 2007
Journal: Chromatographia
Volume: 66
Issue: (5)
Page numbers: 339-347.
DOI: 10.1365/s10337-007-0336-1

Abstract: In order to develop more efficient preparation technologies for imprinted polymers (MIPs), the nature of pre-polymerization and molecular recognition in MIP was investigated by molecular dynamics modeling (MD), 1H NMR, FTIR and some indirect techniques. Phenol was used as the template for the study of mechanism through the analysis of hydrogen bonding, hydrophobic and π - π bonding interaction. The 4-vinylpyridine-based MIP had the highest selectivity to its phenol template. Hydrogen bonding was proved to be present by characterizing the pre-polymerization complex and evaluating the recognition process and the effects of rebinding solvents were also studied. It was found that a good rebinding solvent should have less affinity with both template and polymer, but good solubility. MD modeling and some indirect techniques demonstrated that 4-vinylpyridine-based MIP recognized phenol mainly through hydrophobic interactions when the rebinding medium was water, while hydrogen bonding was present in the recognition process when the rebinding solvent was n-hexane
Template and target information: phenol
Author keywords: column liquid chromatography, molecular imprinting, Molecular dynamics modeling, NMR, FTIR


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