Studies on phenol permeation through supported liquid membranes containing functionalized polyorganosiloxanes

The study showed that phenol permeation expressed as permeate flux through the membranes increases with the larger number of carbon spacers in the alkyl chain of the aminoalcohol pendent, larger porosity of the polypropylene support films, higher mol% of the methylhydrosiloxane portion functionalized and faster flow rates of both the feed and the receiving phases. Phenol permeation was enhanced significantly when the mol% of the methylhydrosiloxane portion was 50-55 or 25-35 with 6-dimethylamino-1-hexanol functionality supported on Celgard 2502.