Preparation and characterization of siloxane composite membranes for n -butanol concentration from ABE solution by pervaporation
Abstract(#br)A poly(vinylidenefluoride) (PVDF) layer was obtained by casting PVDF/ N -methylpyrrolidone solution on a poly(ethylene terephthalate) non-woven sheet using phase inversion. Polydimethylsiloxane (PDMS) and phenyltrimethoxysilane (PhTMS) were cured on PVDF layer surfaces to obtain composite membranes. Multilayer polyphenylsiloxane (PPhS)/PDMS/PVDF composite membranes were prepared for butanol separation in acetone/butanol/ethanol (ABE).