摘要
以磺胺二甲嘧啶为模板分子,分别用甲基丙烯酸和4乙烯基吡啶为功能单体,二甲基丙烯酸乙二醇酯为交联剂,采用牺牲硅胶法合成了磺胺分子印迹聚合物,通过静态吸附实验,系统研究了不同单体对聚合物识别性能的影响;Scatchard分析表明,以甲基丙烯酸为单体的聚合物具有较高的吸附能力,其离解常数Kd为959×10-4mol/L,最大表观结合位点数Qmax为3070μmol/g。
Molecularly imprinted polymers(MIPs) of sulfamethazine(SM 2 ) were prepared with silica gel as a sacrificial material, methacrylic acid(MAA) and 4 vinylpyridine(4 Vp) as functional monomers, glycol dimethacrylate(EDMA) as crosslinker. The polymer properties were investigated by static adsorption experiments. Scatchard analysis shows that the adsorption ability of MAA MIP is superior to that of 4 Vp MIP. The dissociation constant of MAA MIP is 9 59×10 -4 mol/L. The value of apparent binding ability is 307 0 μmol/g.
出处
《应用化学》
CAS
CSCD
北大核心
2005年第1期83-86,共4页
Chinese Journal of Applied Chemistry
基金
教育部高校骨干教师基金(2000K52141)
湖南省教育厅科研项目资助课题(2003C383)
关键词
磺胺二甲嘧啶
分子印迹聚合物
硅胶
分子识别
sulfamethazine,molecularly imprinted polymer,silica gel,molecular recognition
