咖啡因分子印迹聚合物微球的制备及其吸附性能研究  

SYNTHESIS AND ADSORPTION PROPERTIES OF CAFFEINE MOLECULARLY IMPRINTED POLYMER MICROSPHERES

作　　者：董雁[1] 蔡小玉[1] 李兆峰[1] 

机构地区：[1]龙岩学院化学与材料学院,福建龙岩364012

出　　处：《井冈山大学学报（自然科学版）》2015年第6期41-45,共5页Journal of Jinggangshan University (Natural Science)

基　　金：福建省大学生创新创业训练计划项目(201511312051);龙岩学院"百名青年教师攀登项目"(LQ2013020)

摘　　要：在水相中,将模板分子咖啡因、功能单体丙烯酰胺(MA)及乙二醇二甲基丙烯酸酯(EGDMA)采用悬浮聚合法合成咖啡因分子印迹聚合物(MIP),并对印迹聚合物微球进行吸附性能实验、吸附动力学实验、电镜和红外光谱的表征。结果表明:制备的印迹聚合物微球粒径均一,形貌较好,对咖啡因有较好的特异性选择吸附,吸附量为1009.5μg/g,分离因子为2.37。Molecularly imprinted polymers（MIP） were prepared by suspension polymerization in water utilizing caffeineas imprinted molecules, acrylamide（AM）as functional monomer and ethylene glycol dimethacrylate（EGDMA） as crosslinker. Imprinted polymers were characterized by adsorption properties tests, sorption kinetics tests, FT-IR spectra and SEM images. The results showed that adsorptive capacity of imprinted polymer on caffeine was 1009.5 μg/g, and separation factor was 2.37. In conclusion, micro-spheres with uniform size and preferred shapehave selective adsorption of caffeine with good specificity.

关 键 词：咖啡因 印迹聚合物微球 悬浮聚合 

分 类 号：TQ317[化学工程—高聚物工业]