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《Polymer Materials Science & Engineering》 2006-06
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Study on the Separation of Ethanol/Water Using L-DBTA Molecular Imprinted Composite Membranes

YANG Zuo-guo,XU Zhen-liang,WANG Xue-jun(Chemical Engineering Research Center,East China Univ.of Sci.and Tech.,Shanghai 200237,China)  
Using polysulfone(PSF) hollow fiber membrane as the supported membrane,dibenzoyl-L-tartaric Acid(L-DBTA) as a template,methyl methacrylate(MMA) as functional monomer and glycol dimethyacrylate(GDMA) as a cross-linker chiral(L-DBTA),molecular imprinted hollow fiber composite membrane(CMIHFCM) was fabricated by surface thermal-polymerization method.Effect of surface thermal-polymerization process on pervaporation performance was obvious.The pervaporation properties of CMIHFCM for the separation of ethanol/water solution was studied.The pervaporation results show that at 40 ℃ 20% ethanol in the ethanol/water solution,the separation factor is 1086 while permeation flux is 2093 g/m-2·h;50% ethanol in the ethanol/water solution,the separation factor is 2181 while permeation flux is 2185 g/m-2·h.Besides,the apparent activation energy of pervaporation of CMIHFCM is(16.9) kJ/mol.
【Fund】: 国家重点基础研究发展计划(973计划)资助(2003CB615705);; 校基金资助项目
【CateGory Index】: TB383.2
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