Polyelectrolyte complex films for analytical and membrane separation of chiral compounds
First Claim
1. A method of separating or resolving a mixture of enantiomers, the method comprising contacting a solution comprising the enantiomers with a membrane that interacts with the enantiomers in an enantioselective manner and separating the enantiomers by passage through the membrane, the membrane comprising a polyelectrolyte complex film having a thickness between about 10 nm and about 10,000 nm and containing a positively-charged polyelectrolyte and a negatively-charged polyelectrolyte wherein at least one of the polyelectrolytes comprises an enantiomeric excess of chiral repeat units.
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Abstract
The present invention is directed to enantioselective polyelectrolyte complex films. Further, said films may be free or isolated membranes, or coatings on substrates such a porous substrates, capillary tubes, chromatographic packing material, and monolithic stationary phases and used to separate chiral compounds. The present invention is also directed to a method for forming such enantioselective polyelectrolyte complex films.
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Citations
16 Claims
- 1. A method of separating or resolving a mixture of enantiomers, the method comprising contacting a solution comprising the enantiomers with a membrane that interacts with the enantiomers in an enantioselective manner and separating the enantiomers by passage through the membrane, the membrane comprising a polyelectrolyte complex film having a thickness between about 10 nm and about 10,000 nm and containing a positively-charged polyelectrolyte and a negatively-charged polyelectrolyte wherein at least one of the polyelectrolytes comprises an enantiomeric excess of chiral repeat units.
Specification