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- W2363064580 abstract "Membrane separation is one of the promising applications of layer-by-layer technology.Poly(diallyldimethylammonium chloride)/poly(styrenesulfonate sodium salt)(PDDA/PSS) multilayer membranes were self-assembled in polyelectrolyte solutions with different NaCl concentrations.The influences of NaCl concentration of the dipping solutions,number of bilayers and feed temperature on the pervaporation performance of PDDA/PSS multilayer membranes were investigated.Scanning electron microscope(SEM) was used for mea-suring the surface morphology of the PDDA/PSS multilayer membrane.The results of the pervaporation tests show that the PDDA/PSS membranes assembled in high NaCl concentration have a good pervaporation performance,which can be explained by the chain size of polyelectrolytes in dipping solutions and the structure of LbL membranes.The(PDDA/PSS)6PDDA multilayer membrane assembled in 1 mol/L NaCl has separation factor 345 and permeate flux 2.51 kg·m-2·-1 for separating 95% isopropanol isopropanol-water mixture at 55 ℃.An anti-trade-off phenomenon was found and was explained in term of the dependence of both solvent interaction and the swelling of LbL membrane on the feed composition." @default.
- W2363064580 created "2016-06-24" @default.
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- W2363064580 date "2008-01-01" @default.
- W2363064580 modified "2023-09-25" @default.
- W2363064580 title "Pervaporation Performance of Polyelectrolyte PDDA/PSS Layer-by-layer Self-assembly Multilayer Membranes" @default.
- W2363064580 hasPublicationYear "2008" @default.
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