甲胺磷分子印迹聚合物的结合机理及其分子识别特性的光谱学研究  

Spectroscopy Study of Binding Mechanisms and Molecular Recognition of Methamidophos-Specific Moleculary Imprinted Polymer

作　　者：申中兰[1] 杨俊[1] 朱晓兰[1] 高芸[1] 苏庆德[1] 

机构地区：[1]中国科学技术大学化学系,安徽合肥230026

出　　处：《光谱学与光谱分析》2009年第1期78-81,共4页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(20405013);国家烟草专卖局烟草重大科技开发项目(110200202002)资助

摘　　要：采用分子自组装印迹技术合成了一种新的对甲胺磷农药分子有高度选择性的分子印迹聚合物。在预聚合阶段,通过1H NMR,FTIR和UV光谱法研究了分子印迹聚合物的形成机理。结果表明模板分子和功能单体通过协同氢键作用形成1∶2型氢键配合物,配合物稳定常数K=2.894×106L2.mol-2,稳定性好。运用红外光谱法研究了印迹聚合物对模板分子的特异性识别作用,进一步表明印迹聚合物通过协同氢键作用特异性地识别模板分子。A new methamidophos-specific molecularly imprinted polymer（MIP） was synthesized based on non-covalent interaction.The complexes formed between MAP and MAA were evaluated by 1H NMR,FTIR and UV spectrometry.The MAP-MAA complexes of 1∶2 mole ratio were obtained by cooperative hydrogen bonding and the complexes possessed better stabilization（K=2.894×106 L2·mol-2）.The Infrared spectrometry differences of the MIPs before and after saturated with MAP further indicated that there were carboxyl functional groups in the MIP,which could interact with the template by cooperative hydrogen bonding specifically.

关 键 词：甲胺磷 分子印迹聚合物 红外光谱 分子特异性识别 

分 类 号：O433.1[机械工程—光学工程]