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tert-Butylphenyl-terminated disulfonated poly(arylene ether sulfone) random copolymers with a sulfonation degree of 35mol% (BPS35) and controlled molecular weights (M n ), 20–50kgmol −1 , were successfully prepared by direct copolymerization of the two activated halides, 4,4′-dichlorodiphenyl sulfone (DCDPS) and 3,3′-disulfonate-4,4′-dichlorodiphenyl sulfone (SDCDPS) with 4,4′-biphenol...
Biphenol-based, partially disulfonated poly(arylene ether sulfone)s synthesized by direct copolymerization show promise as potential reverse osmosis membranes. They have excellent chlorine resistance over a wide range of pHs and good anti-protein and anti-oily water fouling behavior. Crosslinking of these copolymers that have high degrees of disulfonation may improve salt rejection of the membranes...
Gas transport properties of O 2 in poly(perfluoro sulfonic acid) (Nafion 112) and disulfonated poly(arylene ether sulfone) were compared. While O 2 permeabilities were lower in poly(arylene ether sulfone) when compared to poly(perfluoro sulfonic acid), the O 2 gas sorption in the former was higher than in Nafion 112. Sorption measurements have been carried out both under non-humidified...
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