Please use this identifier to cite or link to this item: https://doi.org/10.1002/pi.1994.210330412
Title: Performance of polysulfone/carboxylated polysulfone membranes
Authors: Lau, Wayne W.Y. 
Jiang, Youqing
Issue Date: Apr-1994
Source: Lau, Wayne W.Y., Jiang, Youqing (1994-04). Performance of polysulfone/carboxylated polysulfone membranes. Polymer International 33 (4) : 413-417. ScholarBank@NUS Repository. https://doi.org/10.1002/pi.1994.210330412
Abstract: Membranes were made from miscible blends of polysulfone (PSf) and carboxylated polysulfone (CPSf) having an average of 0.45 and 0.87 -COOH groups per repeated unit. Membranes made from PSf and CPSf alone showed low separation for NaCl, glucose, polyethylene glycol (PEG) of various molecular weights and bovine albumin, from aqueous solutions under an applied pressure of 50 psig and higher. Membranes made from PSf/CPSf of varied blend composition showed higher separation factors for the above solutes. Highest separation was observed in membranes made from an 80/20 wt% PSf/CPSf 0.45 blend, which yielded a separation factor of 0.60 for NaCl, 0.97 for glucose, 0.98 for PEG and 0.99 for bovine albumin under an applied pressure in the range 50-150 psig. This higher performance is believed to be a result of a synergism between PSf and CPSf 0.45 to give a membrane morphology unique among the PSf/CPSf membranes.
Source Title: Polymer International
URI: http://scholarbank.nus.edu.sg/handle/10635/67512
ISSN: 09598103
DOI: 10.1002/pi.1994.210330412
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