【摘要】 以水杨酸(SA)为模板分子,丙烯酰胺(AM)为功能单体,乙二醇二甲基丙烯酸酯(EDMA)为交联剂,利用沉淀聚合法制备了对水杨酸具有较高选择性与较高亲和性的分子印迹聚合物微球(MIPs)。用傅里叶红外光谱和环境扫描电镜表征印迹聚合物微球的结构和形貌,采用静态吸附法考察了水杨酸分子印迹聚合物微球的吸附性能。结果表明,当SA:AM:EDMA摩尔比为1:4:20时,得到的分子印迹聚合物微球粒径均一,球形度较好,对水杨酸具有较好的选择吸附性,最大表观结合量可达到52.42mg/g。更多还原

【Abstract】 Molecularly imprinted polymeric microspheres for salicylic acid(SA) were prepared by precipitation polymerization in acetonitrile, in which salicylic acid was used as imprinted molecule, acrylamide as functional monomer and ethylene glycol dimethacrylate(EDMA) as crosslinker. The structure and surface topography of SA-imprinted microspheres were characterized by fourier transform infrared spectrometer and scanning electron microscopy, respectively. The results showed that the adsorption performance of SA-imprinted microspheres obtained in n(SA):n(AM):n(EGDMA)=1:4:20, the maximum adsorption capacity of the imprinted microspheres for SA was up to 52.42mg/g.更多还原