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AssigneeThe Regents of the University of Colorado, a body corporate
InventorsDouglas L. Gin, Blaine M. Carter, Brian R. Wiesenauer, Evan S. Hatakeyama, Richard D. Noble, John L. Barton
Estimating the term…
A method of forming a nanoporous membrane includes preparing a solution of a gemini Imidazolium Lyotropic Liquid Crystal (LLC) monomer, a polar low-volatility organic solvent, and a radical photo-initiator in a volatile organic solvent; solvent-casting the solution onto a porous material, evaporating the volatile organic solvent; heating such that the gemini imidazolium monomer forms a Q-phase material and photopolymerizing the imidazolium monomer by exposing the radical photo-initiator to UV light; and exchanging the polar low-volatility organic solvent. Also disclosed is a membrane composed of polymerized gemini imidazolium LLC monomers, and a thin-film composite membrane having the Q-phase material supported on a porous supporting membrane.
A method of forming a nanoporous membrane comprising:
A nanoporous membrane comprising a polymer of at least one gemini imidazolium lyotropic liquid crystal monomer selected from the group consisting of a salt of 1,4-Bis(tetradeca-11,13-dienylimidazole)butane (monomer 3a), 1,6-Bis(tetradeca-11,13-dienylimidazole)hexane (monomer 3b), 1,1′-(oxydi-2,1-ethanediyl)bis[3-(tetraadeca-11,13-dienyl)imidazole] (monomer 3c), 1,4-Bis(octadeca-15,17-dienylimidazole)butane (monomer 3d), 1,6-bis(octadeca-15,17-dienylimidazole)hexane (monomer 3e), and 1,1′-(Oxydi-2,1-ethanediyl)bis[3-(octadeca-15,17-ienyl)imidazole] (monomer 3f);
A nanoporous membrane designated C comprising a polymer formed from at least one gemini lyotropic liquid crystal (LLC) monomer salt, each twin of the gemini LLC comprising a pyridinium group, a double-diene tail of total length 14 to 30, and a anion comprising a halide, nitrate, acetate, or sulfate, the gemini LLC having a linking group of length from 4 to 30, the membrane having QI phase structure.
Dependencies are inferred from the claim text.