抄録
The permeation and retention characteristics of polysulfone resin membranes in separation of protein composition from its aqueous solution were investigated by changing the additive reagents of the casting solution of membranes. These reagents were the polyethylene glycol (PEG), polypropylene glycol (PPG), polyvinyl pyrrolidone (PVP) and ethoxy ethyl acetate (EEA). The value of water permeability were influenced remarkably by the additive reagents.