Ultrathin self-assembled polyelectrolyte multilayer membranes

被引：0

作者：

B. Tieke

F. van Ackern

L. Krasemann

A. Toutianoush

机构：

[1] Institut für Physikalische Chemie,

[2] Universität zu Köln,undefined

[3] Luxemburgerstr. 116,undefined

[4] 50939 Köln,undefined

[5] Germany,undefined

来源：

The European Physical Journal E | 2001年 / 5卷

关键词：

PACS. 68.47.Pe Langmuir-Blodgett films on solids, polymers on surfaces, biological molecules on surfaces – 81.15.Lm Liquid phase epitaxy; deposition from liquid phases (melts, solutions, and surface layers on liquids) – 82.65.Fr Film and membrane processes: ion exchange, dialysis, osmosis, electroosmosis;

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学科分类号：

摘要：

The paper is concerned with ultrathin membranes prepared upon alternating layer-by-layer adsorption of cationic and anionic polyelectrolytes on a porous substructure. The formation of the polyelectrolyte multilayer membranes is characterised and the transport of gases, liquid mixtures and ions across the membranes is studied. In particular, the use of the membranes for alcohol/water separation under pervaporation conditions, and for the separation of mono- and divalent ions is described. It is demonstrated that upon a suitable choice of polyelectrolytes and substructures, and a careful optimisation of preparation and operation conditions, membranes can be tailored exhibiting an excellent separation capability.

引用

页码：29 / 39

页数：10