Comparative study of the behaviour of experimental polyamide UF membranes. The effect of polyvinylpyrrolidone used as an additive

Ultrafiltration of blood proteins by experimental polyamide membranes

“…The polymer used for membrane preparation is an experimental polyamide synthesized in the laboratory [7]. The solvent, dimethylacetamide, was supplied by Ertisa (Huelva, Spain) and was used as received for the preparation and casting of polymer solutions.…”

Preparation and characterization of polymeric microspheres for Cr(VI) extraction

“…Table 3 show the results obtained by porosimetry of Hg. Distributions of pore size range between 0.004 and 20 m. Several researchers have reported the effect of the aggregate of PVP in polymeric membrane preparation [16][17][18][19][20][21][22][23]. The addition of a third component to the casting solution can either induce or suppress formation of macrovoids in asymmetric membranes.…”

Impact of processing conditions on the ultrafiltration of blood proteins with experimental polyamide membranes

“…Membranes were prepared by the traditional phase inversion process described by Torres et al. (1993).…”