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Preparation of D-phenylalanine imprinted microbeads by the modified suspension polymerization using a magnetic impeller

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Abstract

Molecularly imprinted polymeric microbeads (MIPMs) were prepared by using a magnetic impeller by the modified suspension polymerization method with D-phenylalanine (Phe) as the water-soluble template without derivatization, methacrylic acid as the functional monomer, ethylene glycol dimethacrylate as the cross-linker, toluene as the porogen, polyvinyl alcohol as the stabilizer, and sodium dodecyl sulfate as the surfactant. The mean diameter of MIPMs decreased from 12.45 μm to 8.86 μm by using a simple magnetic impeller instead of a conventional simple straight-blade turbine impeller during suspension polymerization. The adsorption selectivity of MIPMs prepared with a magnetic impeller was much improved as compared to the adsorption selectivity of MIPMs prepared with a conventional simple straight-blade turbine impeller. The adsorption selectivity of MIPMs changed from reversed adsorption (less than 1) to positive (higher than 1) as the washing time increased after suspension polymerization.

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Authors and Affiliations

  1. Department of Chemical Engineering, Kyungpook National University, Daegu, 702-701, Korea

    Jae Seung Lee & Joong Kon Park

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  1. Jae Seung Lee
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  2. Joong Kon Park
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Correspondence to Joong Kon Park.

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Lee, J.S., Park, J.K. Preparation of D-phenylalanine imprinted microbeads by the modified suspension polymerization using a magnetic impeller. Korean J. Chem. Eng. 26, 453–456 (2009). https://doi.org/10.1007/s11814-009-0077-y

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  • DOI: https://doi.org/10.1007/s11814-009-0077-y

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