A. Mas et al., POLYHYDROXYBUTYRATE AND POLY(HYDROXYBUTYR ATE-CO-HYDROXYVALERATE) MEMBRANES FOR MICROFILTRATION - INFLUENCE OF A NONSOLVENT ON HYDRODYNAMICPROPERTIES, European Polymer Journal, 32(4), 1996, pp. 427-433
We prepared polyhydroxybutyrate and poly(hydroxybutyrate-co-hydroxyval
erate) porous membranes with phase inversion method from ternary syste
m and different percentages of three different non-solvents (NS): tetr
ahydrofuran, dimethylformamide and ethanol. Retention factor (% R), wa
ter and ethanol fluxes are given. The maximum value of % R for 8-10% N
S is correlated viith the initial collodion ternary phase diagram.