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Ultrafiltration Membranes Composed of Highly Cross‐Linked Cationic Polymer Gel: the Network Structure and Superior Separation Performance
Author(s) -
Wang Qifeng,
Samitsu Sadaki,
Ichinose Izumi
Publication year - 2011
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201100475
Subject(s) - ultrafiltration (renal) , cationic polymerization , membrane , materials science , filtration (mathematics) , polymer , chemical engineering , polymer science , size exclusion chromatography , nanometre , hydroxide , network structure , polymer chemistry , chromatography , organic chemistry , composite material , computer science , chemistry , biochemistry , engineering , machine learning , statistics , mathematics , enzyme
Ultrafiltration membranes with a thickness of several tens of nanometers are prepared from cross‐linked poly(4‐vinylpyridine) gel using a flat and smooth sacrificial layer of metal hydroxide nanostrands. The membranes have a network structure with pores sizes of approximately 2.0 ± 1.0 nm and can separate small proteins and organic dyes at a surprisingly high filtration rate.