期刊
JOURNAL OF MEMBRANE SCIENCE
卷 230, 期 1-2, 页码 171-174出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.memsci.2003.11.017
关键词
beta-cyclodextrin; fixed carrier; polyion complex membrane; isomer; pervaporation
An ultrathin polyion complex (PIC) layer containing beta-cyclodextrin (beta-CD) was formed on the surface of a charged base membrane. Thus, a positively charged copolymer containing beta-CD was synthesized by the radical copolymerization of beta-CD monomer and allylamine, and was used to modify the surface of a Nafion membrane containing negatively charged fixed ions. Electron spectroscopy for chemical analysis (ESCA) confirmed the presence of the copolymer on the surface of the Nation membrane due to the formation of a PIC layer. The ability of the membrane to separate organic isomer mixtures was tested by the pervaporation technique, using butanol isomer mixtures as the feed model. The membrane exhibited a good selectivity toward butanol isomers, indicating the effectiveness of beta-CD as a selective fixed carrier for the isomers. (C) 2003 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据