Abstract
The porous membranes made of polyacrylonitrile (PAN) were developed by vapor induced phase separation (VIPS) technique. The effect of vapor exposure time on membrane permeability and a porous structure was investigated. All membranes exposed in water vapors have a sponge-like structure in contrast to the finger-like structure of PAN membrane obtained by non-solvent induced phase separation (NIPS) method. The obtained membranes demonstrated water permeance up to 405 kg/m2•h•bar and the retention of Blue Dextran (MW 70 kDa) on the level of 52-83%.
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