光谱学与光谱分析, 2010, 30 (11): 3052, 网络出版: 2011-01-26
类特异性分子印迹聚合物微球的识别机理及其光谱学研究
Study of Binding Mechanisms and Molecular Recognition of Class-Specific Molecularly Imprinted Polymer Beads
摘要
以氯磺隆为模板分子, 甲基丙烯酸二乙氨基乙酯为功能单体, 三甲氧基丙烷三甲基丙烯酸酯为交联剂, 乙腈为致孔剂, 在60 ℃温度下, 采用热引发沉淀聚合方法制备了一种能同时吸附氯磺隆、 噻吩磺隆、 单嘧磺隆的类特异性分子印迹微球, 并运用紫外光谱、 红外光谱法等手段对其识别机理进行研究。 结果表明, 该聚合物微球对氯磺隆及其分子结构类似物噻吩磺隆、 单嘧磺隆具有类特异性吸附能力, 同时揭示了分子印迹微球是通过氢键作用特异性地识别模板分子及其类似物。
Abstract
A novel class-specific molecularly imprinted polymer (MIP) beads for sulfonylurea herbicides was synthesized by precipitation polymerization using chlorsulfuron as the template molecule, 2-(diethylamino)ethyl methacrylate (DEAEMA) as the functional monomer, and trimethylolpropane trimethacrylate (TRIM) as the cross-linker. The mechanisms of recognition of MIP beads to the template molecule were evaluated by UV-spectrum and FTIR in the choosing and optimizing polymerization system experiment. The results showed that MIP beads contained the group which could interact with template molecule and its analogue by the hydrogen bonding specifically
佘永新, 王淼, 史晓梅, 刘佳佳, 吕晓玲, 肖航, 曹维强, 王静. 类特异性分子印迹聚合物微球的识别机理及其光谱学研究[J]. 光谱学与光谱分析, 2010, 30(11): 3052. SHE Yong-xin, WANG Miao, SHI Xiao-mei, LIU Jia-jia, L Xiao-ling, XIAO Hang, CAO Wei-qiang, WANG Jing. Study of Binding Mechanisms and Molecular Recognition of Class-Specific Molecularly Imprinted Polymer Beads[J]. Spectroscopy and Spectral Analysis, 2010, 30(11): 3052.
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