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Porous polymer media

United States Patent

October 29, 2002
View the Complete Patent at the US Patent & Trademark Office
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Highly crosslinked monolithic porous polymer materials for chromatographic applications. By using solvent compositions that provide not only for polymerization of acrylate monomers in such a fashion that a porous polymer network is formed prior to phase separation but also for exchanging the polymerization solvent for a running buffer using electroosmotic flow, the need for high pressure purging is eliminated. The polymer materials have been shown to be an effective capillary electrochromatographic separations medium at lower field strengths than conventional polymer media. Further, because of their highly crosslinked nature these polymer materials are structurally stable in a wide range of organic and aqueous solvents and over a pH range of 2-12.
Shepodd; Timothy J. (Livermore, CA)
Sandia National Laboratories (Livermore, CA)
09/ 603,466
June 22, 2000
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. E-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.