论文部分内容阅读
以L-薄荷酮为模板分子,通过Hyperchem8.0计算模拟,从4种单体:对乙烯基苯甲酸(VBA)、甲基丙烯酸(MAA)、丙烯酰胺(AM)、丙烯酸(AA)中优化出功能单体,制备出L-薄荷酮分子印迹聚合物。通过红外光谱分析、场发射扫描电镜、静态吸附实验、Scatchard分析及等温吸附模型分析对聚合物的外貌形态、吸附性能及印记效果进行了表征。结果表明,L-薄荷酮与甲基丙烯酸所形成复合物的作用力最强,由红外光谱研究发现,L-薄荷酮与甲基丙烯酸之间存在氢键,与分子模拟的结果一致。与非印迹聚合物相比,印迹聚合物对模板分子有较强的吸附作用,最大表观吸附量是47.84μmol/g,且在研究浓度范围内印迹聚合物对印迹分子只存在一种结合位点,符合Langmuir等温吸附模型。
Using L-menthone as a template molecule and optimized by computational Hyperchem 8.0, we optimized four monomers: VBA, MAA, AM and AA A functional monomer, to prepare L-menthone molecularly imprinted polymer. The morphology, adsorption properties and imprinting effects of the polymers were characterized by infrared spectroscopy, field emission scanning electron microscopy, static adsorption experiments, Scatchard analysis and isothermal adsorption model analysis. The results showed that the complex formed by L-menthone and methacrylic acid was the strongest. From the infrared spectra, it was found that there was hydrogen bond between L-menthone and methacrylic acid, which was consistent with the molecular simulation. Compared with the non-imprinted polymer, the imprinted polymer has strong adsorption on the template molecule, the maximum apparent adsorption amount is 47.84μmol / g, and there is only one binding site for the imprinted polymer in the range of the concentration of the imprinted polymer Point, in line with Langmuir isotherm model.