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《Acta Chimica Sinica》 2009-05
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Selective Adsorption of D- and L-Phenylalanine on the Imprinted Polymerized Organogel Membranes

Xiong, Yuna Wang, Hong,b Jin, Leia Feng, Guilonga Zhang, Shengzua Yang, Yajiang,a (a Institute of Polymer Science and Engineering, bInstitute of Analysis Science, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074)  
1-Methyl-2,4-bis(N'-n-octadecylureido)benzene (MBB) was used as a gelator. A mixture of 2-ethylhexyl acrylates (EHA), methyl methacrylate (MMA) and polyethylene glycol dimethacrylates (PEG200DMA) was used as solvent in the presence of template and initiator. MBB can self-assemble in this solvent mixture to form entangled nano-sized fibrillar aggregates, ultimately turn the solvent mixture into stable supramolecular organogels. After polymerization by UV initiation and removal of MBB aggregates and template by ethanol extraction, a novel imprinted polymerized organogel membranes was obtained for the absorption of D-and L-phenylalanine. The effects of MBB concentrations, template concentrations and mass ratio of monomers on the adsorption efficiencies were investigated. The results indicate that the ad-sorption efficiencies for L-phenylalanine were 3~4 times higher than that for D-phenylalanine, exhibiting distinct selective adsorption.
【Fund】: 国家自然科学基金(No.20574026)资助项目
【CateGory Index】: O631.3
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