甲基对硫磷分子印迹聚合物光谱研究

doi:10.3964/j.issn.1000-0593(2009)10-2756-04

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摘要：以甲基对硫磷为模板分子，分别以甲基丙烯酸、丙烯酰胺和4-乙烯基吡啶为功能单体，合成了三种分子印迹聚合物。利用紫外光谱研究了甲基对硫磷与不同功能单体间作用力的大小，表明4-乙烯基吡啶与甲基对硫磷间的作用力明显强于另外两种单体。红外光谱研究表明4-乙烯基吡啶可以同模板分子的P—O—C和—NO₂部位发生反应，并形成稳定的共价化合物，而另外两种单体仅在P—O—C部位与模板分子缔合。此外，由三种分子印迹聚合物的红外光谱图可以看出，在聚合物表面确实存在着可与模板分子相互作用的官能团。

关键词：分子印迹技术;甲基对硫磷;红外光谱;紫外光谱

Abstract：Three molecularly imprinted polymers were synthesized with different functional monomers respectively, using methyl parathion as the template. These monomers are methacrylic acid, acrylamide and 4-vinylpyridine. According to the UV spectrum study the interaction between methyl parathion and 4-vinylpyridine was stronger than that of the others. Comparably, the infrared spectrum study showed the same results which indicated that 4-vinylpyridine could associate with the template at two different kinds of binding sites, the P—O—C and the —NO₂ site, and is most likely to form steady covalent bonds with methyl parathion, while the other two monomers could only associate with the template at the P—O—C site. Furthermore, the infrared spectra of the synthesized polymers confirmed the existence of the functional groups in each kind of polymer, which might interact with the template.

Key words：Molecular imprinting technique;Methyl parathion;IR spectrum;UV spectrum

收稿日期: 2008-05-22 修订日期: 2008-08-26

中图分类号:

O63

通讯作者: 刘娇 E-mail: your_maggie@163.com

引用本文:

刘娇，孟范平，姚瑞华，李卓娜. 甲基对硫磷分子印迹聚合物光谱研究[J]. 光谱学与光谱分析, 2009, 29(10): 2756-2759.
LIU Jiao, MENG Fan-ping, YAO Rui-hua, LI Zhuo-na. Spectroscopy Study of Methyl Parathion Molecularly Imprinted Polymers . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2009, 29(10): 2756-2759.

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