Acta Chimica Sinica ›› 2012, Vol. 70 ›› Issue (07): 921-928 .DOI: 10.6023/A1106273 Previous Articles     Next Articles

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李鸣芳, 王兵   

  1. 天津工业大学中空纤维膜材料与膜过程省部共建国家重点实验室培育基地天津工业大学环境与化学工程学院 天津 300387
  • 投稿日期:2011-06-27 修回日期:2012-02-20 发布日期:2012-04-23
  • 通讯作者: 王兵
  • 基金资助:

    天津市自然科学基金重点项目(No. 10JCZDJC21900)资助项目.

Synthesis Approach of Initiation Mode Impacting on the Structure and Properties of Metal-complexing Imprinted Polymers for Quercetin-Co(II)

Li Mingfang, Wang Bing   

  1. State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, School of Environmental and Chemical Engineering, Tianjin Polytechnic University, Tianjin 300387
  • Received:2011-06-27 Revised:2012-02-20 Published:2012-04-23
  • Supported by:

    Supported by the Natural Science Foundation of Tianjin (No 10JCZDJC21900)

A series of metal-complexing imprinted polymers were prepared in methanol with quercetin-Co(II) complex as template by photo and thermal initiated polymerization (quercetin is a kind of flavonoids which are important active ingredients of Chinese herbs), respectively. The rational ratio between quercetin and Co(II) was investigated by UV-Vis spectroscopy. Assessment of the various polymers revealed that the optimal ratio of functional monomer to template was 4∶1. The molecularly imprinted polymers (MIPs) prepared were characterized by Fourier transform infrared spectra. The effect of initiation mode on the morphology and binding capacity of MIPs were studied by transmission electron microscopy and equilibrium binding experiments. The specific absorption capacity index and the imprint factor were obtained, and it was testified that the lower temperature was more suitable for the polymerization of metal-complexing imprinted polymers. The effect of different cations and anions on binding capacities of the photo-initiated imprinted polymers were studied in detail. The results showed that the photo-initiated metal-complexing imprinted polymers exhibited the good selective adsorption ability to quercetin-Co(II) and the imprint factor was up to 3.919.

Key words: molecular imprinting technique, molecularly imprinted polymer, metal coordination, quercetin, Co(II)