Photoirradiation surface molecularly imprinted polymers for the separation of 6-O-α-D-maltosyl-β-cyclodextrin
Photoirradiation surface molecularly imprinted polymers for the separation of 6-O-α-D-maltosyl-β-cyclodextrin
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DOI：
10.1002/jssc.201700808
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发表时间：
2017-12-01
影响因子：
3.1
通讯作者：
Jin, Zhengyu
中科院分区：
文献类型：
--
作者：
Fan, Haoran;Wang, Jinpeng;Jin, Zhengyu
以功能化硅胶为基质，4-苯基重氮基苯酚为光敏单体，6-O-α-D-麦芽糖基-β-环糊精为模板，合成了用于分离6-O-α-D-麦芽糖基-β-环糊精的光辐射表面分子印迹聚合物。傅里叶变换红外光谱结果表明，4-（苯基重氮基）苯酚接枝到功能化二氧化硅表面。所得印迹聚合物对6-O-α-D-麦芽糖基-β-环糊精具有特异性识别。平衡结合实验表明，光辐照表面分子印迹聚合物对6-O-α-D-麦芽糖基-β-环糊精的最大吸附量为20.5 mg/g。结合动力学实验表明，吸附在2 h内达到饱和，结合容量为72.8%。实验结果表明，印迹聚合物对6-O-α-D-麦芽糖基-β-环糊精具有良好的吸附性能和选择性，可用于从β-环糊精和麦芽糖的转化混合物中分离6-O-α-D-麦芽糖基-β-环糊精。结果表明，该方法制备的印迹聚合物对6-O-α-D-麦芽糖基-β-环糊精具有良好的选择性分离性能。
Photoirradiation surface molecularly imprinted polymers for the separation of 6-O-alpha-D-maltosyl-beta-cyclodextrin were synthesized using functionalized silica as a matrix, 4-(phenyldiazenyl) phenol as a light-sensitive monomer, and 6-O-alpha-D-maltosyl-beta-cyclodextrin as a template. Fourier transform infrared spectroscopy results indicated that 4-(phenyldiazenyl) phenol was grafted onto the surface of functionalized silica. The obtained imprinted polymers exhibited specific recognition toward 6-O-alpha-D-maltosyl-beta-cyclodextrin. Equilibrium binding experiments showed that the photoirradiation surface molecularly imprinted polymers obtained the maximum adsorption amount of 6-O-alpha-D-maltosyl-beta-cyclodextrin at 20.5 mg/g. In binding kinetic experiments, the adsorption reached saturation within 2 h with binding capacity of 72.8%. The experimental results showed that the adsorption capacity and selectivity of imprinted polymers were effective for the separation of 6-O-alpha-D-maltosyl-beta-cyclodextrin, indicating that imprinted polymers could be used to isolate 6-O-alpha-D-maltosyl-beta-cyclodextrin from a conversion mixture containing beta-cyclodextrin and maltose. The results showed that the imprinted polymers prepared by this method were very promising for the selective separation of 6-O-alpha-D-maltosyl-beta-cyclodextrin.