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Issue
Korean Journal of Chemical Engineering,
Vol.26, No.2, 453-456, 2009
Preparation of D-phenylalanine imprinted microbeads by the modified suspension polymerization using a magnetic impeller
Lee JS, Park JK
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.
Keywords: Molecularly Imprinted Polymeric Microbead; Phenylalanine; Modified Suspension Polymerization; Enantioselective Separation; Molecular Recognition; Impeller
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[Cited By]
  1. Shah N, Ha JH, Ul-Islam M, Park JK, Korean Journal of Chemical Engineering, 28(9), 1936, 2011
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