Improved permeability and antifouling performance of Tröger's base polymer-based ultrafiltration membrane via zwitterionization
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Keywords:
Biofouling
Ultrafiltration (renal)
Phase inversion
Synthetic membrane
Polyethersulfone(PES)/Sulfonated polysulfone(SPSF) blend ultrafiltration membranes at different SPSF contents were prepared using a phase inversion technique. The morphological structures of PES/SPSF blend ultrafiltration membranes with different sulfonation degree were characterized using SEM. The results shown that the PES/SPSF blend ultrafiltration membranes had good retention to PEG1000 (99.8%) and high water permeate flux (27.2Lm-2h-1) at 0.1MPa.
Polysulfone
Ultrafiltration (renal)
Phase inversion
Characterization
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Ultrafiltration (renal)
Phase inversion
Membrane Technology
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Ultrafiltration (renal)
Phase inversion
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Phase inversion
Ultrafiltration (renal)
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Synthetic membrane
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Membranes commonly used for separation processes can be made using phase inversion techniques. This study aims to determine the characteristics of the modified polyethersulfone/polyethilenglycol (PES/PEG) flat membrane using chitosan-succinate in 4 ratio mole made using phase inversion techniques. The results of SEM and BET analysis on membrane morphology prove that the membrane produced is a porous membrane. PES/PEG-CS-Succ membranes have a smaller and more uniform pore structure than. PES membranes. The permeability ability of PES/PEG-CS-Succ membrane is 0,4823 mg/dL and 23,1028 mg/dL, respectively.
Phase inversion
Synthetic membrane
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Isopropyl alcohol
Phase inversion
Hildebrand solubility parameter
Membrane structure
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Abstract A method has been developed for characterizing the transport properties of ultrafiltration membranes. A solution of a polydisperse polymer is employed, and a steady-state sample of the retentate and ultrafiltrate is taken. Analysis of the amount of polymer in each stream and determination of its molecular weight distribution by gel permeation chromatography allow a complete characterization of the ultrafiltration membrane.
Ultrafiltration (renal)
Characterization
Synthetic membrane
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A polyvinylidene fluoride (PVDF)/polyvinyl acetate (PVAc) blend ultrafiltration(UF) membrane was prepared by phase inversion method.The experimental results showed that the blend membrane significantly increased the water flux of PVDF membrane as well as kept the excellent chemical stability and high rejection for vitamin B 12 .
Ultrafiltration (renal)
Polyvinylidene fluoride
Phase inversion
Polyvinyl acetate
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Ultrafiltration (renal)
Biofouling
Synthetic membrane
Membrane Fouling
Bovine serum albumin
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