Batch adsorption performance of methyl methacrylate/styrene copolymer membranes

被引:16
作者
Chiu, Hsin-Chieh [1 ]
Huang, Jun-Jie [1 ]
Liu, Chia-Hung [1 ]
Suen, Shing-Yi [1 ]
机构
[1] Natl Chung Hsing Univ, Dept Chem Engn, Taichung 40227, Taiwan
关键词
methyl methacrylate; styrene; copolymer membrane; adsorption; quercetin; protein; alpha-tocopherol; flavonoid glycosides;
D O I
10.1016/j.reactfunctpolym.2006.04.011
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Methyl methacrylate (MMA)/styrene copolymer membranes with different feed molar ratios of monomers are reported. The copolymer structure and properties were examined by contact angle measurements, FT-IR and H-1-NMR spectroscopy. Membranes were fabricated by casting a liquid film of 15-20 wt% copolymer in 1-methyl-2-pyrrolidinone that was exposed to air of 90% relative humidity for 3 min and then immersed into a 25 degrees C deionized water bath. A spongelike morphology was observed for the copolymer membranes. The specific surface area and water content increased with increasing MMA/styrene ratio. In addition, the batch adsorption performance for various molecules (quercetin, proteins, a-tocopherol, and flavonoid glycosides in Ginkgo biloba L. extract) was investigated. The higher was the MMA/styrene molar ratio, the greater the related adsorption capacity was. In three cycles of batch adsorption/desorption operation, the content of flavonoid glycosides could be raised from 3.1 wt% to 14 wt%. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码:1515 / 1524
页数:10
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