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2012•Journal of Analytical ScienceRequires access

Spectroscopic Analysis of Molecular Recognition of Sudan I Molecularly Imprinted Polymer

Yuanming Sun

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Abstract

A molecularly imprinted polymer(MIP) with high selectivity was prepared by precipitated polymerization using Sudan redⅠ as template molecule,α-methacrylic acid(MAA) as functional monomer and ethylene glycol-methyl acrylate(EGDMA) as cross-linker.The adsorption property of the MIP was evaluated by equilibrium binding experiments,and the recognition mechanism of the MIP was also investigated by UV spectrum and 1H NMR.The results showed that the template molecule could interact with the functional monomer by cooperative hydrogen bonding.Infrared spectra further demonstrated the specific non-covalent hydrogen bonds between MIP and the template molecule.

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What this paper is about

A molecularly imprinted polymer(MIP) with high selectivity was prepared by precipitated polymerization using Sudan redⅠ as template molecule,α-methacrylic acid(MAA) as functional monomer and ethylene glycol-methyl acrylate(EGDMA) as cross-linker.The adsorption property of the MIP was evaluated by equilibrium binding experiments,and the recognition mechanism of the MIP was also investigated by UV spectrum and 1H NMR.The results showed that the template molecule could interact with the functional monomer by cooperative hydrogen bonding.Infrared spectra further demonstrated the specific non-covalent hydrogen bonds between MIP and the template molecule.

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Available abstract

A molecularly imprinted polymer(MIP) with high selectivity was prepared by precipitated polymerization using Sudan redⅠ as template molecule,α-methacrylic acid(MAA) as functional monomer and ethylene glycol-methyl acrylate(EGDMA) as cross-linker.The adsorption property of the MIP was evaluated by equilibrium binding experiments,and the recognition mechanism of the MIP was also investigated by UV spectrum and 1H NMR.The results showed that the template molecule could interact with the functional monomer by cooperative hydrogen bonding.Infrared spectra further demonstrated the specific non-covalent hydrogen bonds between MIP and the template molecule.

Key concepts: Molecularly imprinted polymer, Chemistry, Methacrylic acid, Hydrogen bond, Molecular recognition, Monomer, Ethylene glycol dimethacrylate, Molecule

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