Erschienen in:
Macromolecular Symposia, 287 (2010) 1, Seite 22-31
Sprache:
Englisch
DOI:
10.1002/masy.201050104
ISSN:
1022-1360;
1521-3900
Entstehung:
Anmerkungen:
Beschreibung:
AbstractSummary: 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 hexaazacyclooctadecane 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.