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《Acta Chimica Sinica》 2002-02
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Study on Recognition Mechanism of Molecularly Imprinted Microsphere Synthesized from Aqueous Solution

LAI, Jia-Ping CAO, Xian-Feng HE, Xi-Wen LI, Yuan-Yuan (Department of Chemistry, Nankai University, Tianjin 300071)  
Molecularly imprinted polymer microspheres against 4-aminopyridine (4-AP) and trimethoprim (TMP) were synthesized by aqueous micro-suspension polymerization with polyvinyl alcohol 400 as dispersive reagent. The ionic (electrostatic) interaction between molecule and monomer/polymer was used during synthesizing and recognizing process. The interaction mechanisms were compared between TMP and 4-AP imprinted column. The results showed that the interaction between acidic monomer/polymer and template with amino group mainly depended on the ionic (electrostatic) interaction, of which the strength level relied on the number of amino group in template molecules. The results showed that the interaction was the coordinated interaction, but not the simply added interaction.
【Fund】: 国家自然科学基金 (Nos.2 0 175 0 0 9 2 9775 0 11);; 天津市自然科学基金 (No.0 0 36 0 2 2 11)资助项目
【CateGory Index】: O631
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