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- W2078425516 abstract "A series of blend membranes of poly(phenyl sulfone) (PPSU) with poly(bisphenol A-co-4-nitrophthalic anhydride-co-1,3-phenylenediamine) (PBNPI) were prepared through a solution casting method. This was done to examine the permeation characteristics of oxygen and nitrogen. The effect of the PPSU/PBNPI ratio on the membrane structure and O2/N2 separation performance were investigated. The results show that the permeability increased remarkably with the content of PPSU, whereas the selectivity decreased slightly. To enhance the selectivity of O2/N2, the blend membranes were further crosslinked with a p-xylylenediamine agent via the immersion method. According to the Fourier transform infrared analysis, the NH group was formed on the imide group of PBNPI. Therefore, we suggest that during the crosslinking modification, the PBNPI served as a crosslinkable polymer; this resulted in increased crosslinking efficiency with PBNPI content. The high-resolution X-ray diffraction and melting point method results show that crosslinking modification improved the selectivity with an acceptable loss in permeability along with increased crystallinity. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010" @default.
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- W2078425516 date "2009-01-01" @default.
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- W2078425516 title "Effects of crosslinking modification on the O2/N2separation characteristics of poly(phenyl sulfone)/poly(bisphenol A-co-4-nitrophthalic anhydride-co-1,3-phenylenediamine) blend membranes" @default.
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- W2078425516 doi "https://doi.org/10.1002/app.31455" @default.
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