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- W3097260139 startingPage "437" @default.
- W3097260139 abstract "PAN membranes were prepared from mixture of good and weak solvents by two different methods. Immersion precipitation method with and without volatile component evaporation used for membrane preparation. From analysis of Hansen solubility parameters DMSO chosen as good solvent and acetone chosen as weak solvent. The effect of volatile weak solvent investigated on pore size and filtration performance. By evaporation of acetone, it was possible to increase polymer concentration on casting solution and obtain smaller pore size in comparison to membrane prepared from DMSO. Membranes prepared from DMSO/acetone without solvent evaporation had even lower pore size and higher filtration performances. It was shown, that presence of acetone creates more pronounced effect on pore size than increase of polymer concentration. As a result membranes with pore size 3.7 nm obtained from Acetone/DMSO mixture with composition 50:50 and polymer concentration 50 % by immersion precipitation Resulted membranes have permeance 23 kg/m 2 ·h·bar and retention of Lysozime 99 %." @default.
- W3097260139 created "2020-11-09" @default.
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- W3097260139 date "2020-10-01" @default.
- W3097260139 modified "2023-09-23" @default.
- W3097260139 title "Preparation of Fine Porous Ultrafiltration Membranes from Polyacrylonitrile" @default.
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- W3097260139 doi "https://doi.org/10.4028/www.scientific.net/kem.869.437" @default.
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