Ion-selective Membranes Prepared Upon Layer-by-Layer Assembly of Azamacrocycles and Polyelectrolytes

被引：9
|
作者：
Hoffmann, Kristina [1 ]
El-Hashani, Ashraf [1 ]
Tieke, Bernd [1 ]
机构：
[1] Univ Cologne, Inst Phys Chem, D-50939 Cologne, Germany
来源：
MACROMOLECULAR SYMPOSIA | 2010年 / 287卷
关键词：
layer-by-layer assembly; macrocyclic compounds; polyelectrolytes; separation membranes; TRANSPORT; POLYVINYLSULFATE; COMPLEXES; PHOSPHATE; BINDING;
D O I：
10.1002/masy.201050104
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
Recent studies on ion transport across multilayered membranes of azamacrocycles and polyelectrolytes are reviewed. Membranes were built up on porous PAN/PET supports using electrostatic layer-by-layer assembly. Two types of separation membranes were prepared, type I consisting of protonated hexaazacyclo-octadecane and polyvinylsulfate, and type II of hexaazacyclo-octadecane hexaacetic acid and protonated polyvinylamine. Ion transport was studied under dialysis, nanofiltration and reverse osmosis conditions. Type I membranes were suitable for efficient separation of mono- and divalent anions, whereas type II membranes were suited for separation of mono- from di- and trivalent cations.
引用
收藏
页码：22 / 31
页数：10
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