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Chlorine Resistant Glutaraldehyde Crosslinked Polyelectrolyte Multilayer Membranes for Desalination
Author(s) -
Cho Kwun Lun,
Hill Anita J.,
Caruso Frank,
Kentish Sandra E.
Publication year - 2015
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.201405783
Subject(s) - glutaraldehyde , membrane , polyelectrolyte , polysulfone , desalination , materials science , chemical engineering , chlorine , salt (chemistry) , reverse osmosis , polymer chemistry , chromatography , composite material , organic chemistry , chemistry , polymer , biochemistry , engineering , metallurgy
Crosslinked polyelectrolyte multilayer membranes are synthesized with salt rejection values approaching those of commercial desalination membranes, but with increased chlorine resistance. The membranes are fabricated directly onto porous commercial substrates. Subsequent crosslinking of the polycation layers with glutaraldehyde leads to NaCl rejections of up to 97%, while the incorporation of a highly sulfonated polysulfone polyanion leads to high chlorine resistance.