| 悬浮聚合法合成马拉硫磷分子印迹聚合物的吸附性能研究 |
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| 基金项目:国家自然科学基金资助项目(21575034);河南工业大学河南省省属高校基本科研业务费专项资金(2017RCJH10) |
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| 中文摘要:基于分子印迹技术，采用悬浮聚合的方法，合成了马拉硫磷分子印迹聚合物。通过优化，确定最佳合成条件为：模板分子(马拉硫磷)∶功能单体(α-甲基丙烯酸)为1∶8，模板分子(马拉硫磷)∶交联剂(乙二醇二甲基丙烯酸酯)为1∶40，温度60 ℃，引发剂用量为1.0%。吸附性能测试结果表明，印迹聚合物对马拉硫磷的最大吸附量为4.62 μg/mg，而非印迹聚合物对马拉硫磷的最大吸附量为2.21 μg/mg；通过选择性实验得到印迹聚合物对灭线磷、甲拌磷、特丁硫磷、乐果、马拉硫磷、克线磷的吸附量分别为3.87、3.75、3.57、4.00、4.44、3.61 μg/mg，而非印迹聚合物的吸附量分别为1.42、1.37、1.30、1.43、1.12、1.23 μg/mg。 |
| 中文关键词:马拉硫磷 分子印迹聚合物 悬浮聚合 吸附性能 |
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| Study on Adsorption Performance of Malathion Molecularly Imprinted Polymers Synthesized by Suspension Polymerization |
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| Abstract:Molecularly imprinted polymers(MIPs) for malathion were synthesized by suspension polymerization,using azobisisobutyronitrile as the thermal polymerization initiator.The optimum conditions were as follows:the ratio of template molecule(malathion),functional monomer(methacrylic acid) and cross-linker(ethylene dimethacrylate):1∶8∶40,the reaction temperature:60 ℃,the amount of thermal polymerization initiator:1.0%.The maximum adsorption of MIPs was 4.62 μg/mg under the optimum conditions,while that of molecularly non-imprinted polymers was 2.21 μg/mg.The absorption amounts of MIPs for ethoprophos,phorate,terbufos,dimethoate,malathion,and fenamiphos were 3.87,3.75,3.57,4.00,4.44,3.61 μg/mg,respectively,while those of the non-imprinted polymers were 1.42,1.37,1.30,1.43,1.12,1.23 μg/mg,respectively. |
| Key Words:malathion molecularly imprinted polymers suspension polymerization adsorption performance |
| 引用本文：芮超凡,宋立新,陈思,李媛媛,温志兵,何娟,魏宏亮,谷克仁.悬浮聚合法合成马拉硫磷分子印迹聚合物的吸附性能研究[J].分析测试学报,2018,37(3):359-362. |
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