文献类型：期刊文献

英文题名：Preparation and characterization of theophylline-Cu (II) complexing molecular imprinted membranes

作者：Chen, An[1]; Xu, Zhenliang[1]; Wang, Jingyu[1]; Zhang, Ying[1]

机构：[1] State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R and D Laboratory, East China University of Science and Technology, Shanghai 200237, China

年份：2012

卷号：28

期号：3

起止页码：130

外文期刊名：Gaofenzi Cailiao Kexue Yu Gongcheng/Polymeric Materials Science and Engineering

收录：EI(收录号：20121714972197)

语种：英文

外文关键词：Crosslinking - Fluorine compounds - Copper compounds - Ethylene glycol - Membranes - Ethylene

摘要：Metal-complexing theophylline molecular imprinted membranes were prepared on the polyvinylidene fluoride (PVDF) membrane substrate through the surface coated thermal polymerization method using theophylline (THO) as a template, Cu2+ as a ligand, 4-vinylpyridine (4-VP) as a functional monomer and ethylene glycol dimethacrylate (EDMA) as a cross-linker. The binding capacities and selectivity of imprinted membranes and non-imprinted membranes towards THO were investigated by equilibrium binding experiments. The results show that the binding capacity is increased in the coordination of Cu2+, from 1.61 μmol/g to 2.69 μmol/g at THO concentration 0.2 mmol/L. The binding capacity by imprinted membrane is distinctly enhanced in the coordination of Cu2+, compared with non-imprinted membranes. The selectivity of THO differentiated from Theobro mine (TB) can reach 2.39 at concentration 0.15 mmol/L.