Citation:
ZHANG Mao-Sheng, HUANG Jia-Rong, ZHENG Xiang-Hua, HE Jian-Feng. Preparation and Selective Permeation Characterization of Molecularly Imprinted Membranes with Malachite Green as Template[J]. Chinese Journal of Applied Chemistry,
;2010, 27(1): 107-111.
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Molecularly imprinted membranes were prepared with malachite green as template molecule,acrylamide as functional monomer and N,N'-methylenebisacrylamide as cross-linker by means of surface molecularly imprinted technique(MIT) in the presence of 0.45 μm hydrophilic cellulose ester filter membranes,and the selective permeation characterization of the template molecule and its analogues through the membranes was studied via the competitive permeation experiment.Molecularly imprinted membranes showed a permeation amount of 0.118 mg/cm2 for malachite green after permeation for 13 h,and corresponding permeation amounts of only 0.064,0.057 and 0.044 mg/cm2 for methyl violet,cresol red and bromothymol in single permeation experiments.The permeation amount for malachite green didn not show significant reduction in the competitive permeation experiment,while that for its analogues methyl violet obviously decreased.The experiment results show that the molecularly imprinted membrane exhibited the higher permeation selectivity for the template malachite green,and the preferential permeation properties for malachite green in the presence of its analogues methyl violet.
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