Lyotropic liquid crystal nanofiltration membranes

Details Lyotropic liquid crystal nanofiltration membranes Lyotropic liquid crystal nanofiltration membranes

2003-10-03

2009-10-20

Fortuna, Ana M (Department: 1797)

Liquid purification or separation

Filter

Supported, shaped or superimposed formed mediums

C210S500270, C210S500410, C210S500380, C205S067000, C264S041000

Reexamination Certificate

active

07604129

ABSTRACT:
The invention provides composite nanofiltration membranes (FIG.5) with lyotropic liquid crystal (LLC) polymer porous membranes (30) attached to a porous support (20). The LLC membranes are prepared from LLC monomers which form the inverted hexagonal or bicontinuous cubic phase. The arrangement, size, and chemical properties of the pores can be tailored on the molecular level. The composite membrane of the invention is useful for separation processes involving aqueous and nonaqueous solutions as well as gases. Methods for making and using the composite nanofiltration membranes of the inventions are also provided.

REFERENCES:
patent: 4614524 (1986-09-01), Kraus
patent: 5238613 (1993-08-01), Anderson
patent: 5238992 (1993-08-01), Outubuddin
patent: 5670051 (1997-09-01), Pinnau et al.
patent: 5849215 (1998-12-01), Gin et al.
patent: 5900292 (1999-05-01), Moriya et al.
patent: 6054111 (2000-04-01), Antonietti et al.
patent: 6264741 (2001-07-01), Brinker et al.
patent: 6503382 (2003-01-01), Bartlett et al.
patent: 6586561 (2003-07-01), Litt et al.
patent: 6696113 (2004-02-01), Kawata et al.
patent: 7090788 (2006-08-01), Elliott
patent: 7166161 (2007-01-01), Lazarev et al.
patent: 7371887 (2008-05-01), Stupp et al.
patent: 2006/0194927 (2006-08-01), Gin et al.
patent: 2008/0029735 (2008-02-01), Gin et al.
patent: 2008/0319202 (2008-12-01), Gin et al.
patent: WO 98/30318 (1998-07-01), None
Beginn et al. (2000) “Membranes Containing Oriented Supramolecular Transport Channels,”Adv. Mater. 12:513-516.
Beginn et al. (2000) “Functional Membranes Containing Ion-Selective Matrix Fixed Supramolecular Channels,”Adv. Mater. 12:510-516.
Beginn, U. (1998) “Supramolecular Templates as Porogenes,”Adv. Mater. 10(16):1391-1394.
Clark et al. (1999) “Polymerization of Organized Polymer Assemblies,”Curr. Opin. Colloid Interface Sci. 4:122-129.
Deng et al. (1998) “Polymerizable Lyotropic Liquid Crystals Containing Transition-Metal and Lanthenide Ions: Architectural Control and Introduction of New Properties into Nanostructured Polymers,”J. Am. Chem. Soc. 120(14):3522-3523.
DePierro et al. (2004) “Generation and Control of Polymer Nanostructures Through Photopolymerization in Lyotropic Liquid Crystalline Media,”Radtech Rep. :11-21.
Eastoe et al. (2000) “Control Over Phase Curvature Using Mixtures of Polymerizable Surfactants,”Chem. Mater. 12:3533-3537.
Gankema et al. (1996), “Gel Template Leaching: An approach to Functional Nanoporous Membranes,”Macromol. Symp., 102, 301.
Gin et al. (1999) “Polymerizable Liquid Crystals as Building Blocks for Functional, Nanostructured Materials,”Synthetic Lett. 10:1509-1522.
Gin et al. (Oct. 2001) “Polymerized Lyotropic Crystal Assemblies for Materials Applications,”Acc. Chem. Res. 34:973-980.
Gray et al. (1998) “Polymerizable Lyotropic Liquid Crystals Containing Transition-Metal Ions as Building Blocks for Nanostructured Polymers and Composites,”Chem. Mater. 10(7):1827-1832.
Gu et al. (Jun. 2001) “A Nanostructured, Scandium-Containing Polymer for Heterogeneous Lewis Acid Catalysis in Water,”Chem. Mater. 13(6):1949-1951.
International Search Report for PCT/US0331429.
Jung et al. (Feb. 2001) “Polymerization in Lyotropic Liquid-Crystalline Phases of Dioctadecyldimethylammonium Bromide,”Colloid Polym. Sci. 279:105-113.
Lee et al. (1995) “Polymerization of Non-Lamellar Assemblies,”J. Am. Chem. Soc. 177:5573-5578.
Liu et al. (1998) “Diblock Thin Film with Densely Hexagonally Packed Nanochannels,”Adv. Mater. 10:69-.
Liu et al. (2000) “Nanofiltration Membranes Prepared by Direct Microemulsion Copolymerization Using Poly(Ethylene Oxide) Macromonomer as a Polymerizable Surfactant,”J. Appl. Polym. Sci. 77:2785-2794.
McGrath, K.M. (1996) “Polymerization of Liquid Crystalline Phases in Binary Surfactant/Water Systems. Part 2. ω-undecenyltrimethylammonium Bromide,”Colloid Polym. Sci. 274:399-409.
Miller et al. (1999) “Nanostructured Materials Based on Polymerizable Amphipliles,”Curr. Opin. Colloid Interface Sci. 4:338-347.
Miller et al. (1999) “Heterogeneous Catalysis with Cross-Linked Lyotropic Liquid Crystal Assemblies: Organic Analogues to Zeolites and Mesoporous Sieves,”Angew. Chem. Int. Ed. 38(20):3021-3026.
O'Brien et al. (1998) “Polymerization of Preformed Self-Organized Assemblies,”Acc. Chem. Res. 31:861-868.
Paleos, C.M. (1992) “Polymerization of Micelle-Forming Monomers,” In;Polymerizations in Organized Media, Gordon and Breach, Philadelphia, pp. 183-214.
Pindzola et al. (2000), “Lyotropic Liquid-Crystalline Phase Behavior of Some Alkyltrimethylphosphonium Bromides”, Langmuir, 16, 6750-6753.
Pindzola et al. (2001) “Polymerization of Phosphonium-Diene Based Gemini Surfactants in the Regular Hexagonal and Bi-Continuous Cubic Phases,”Abstracts of Papers of the Am. Chem. Soc. 22ndNational Meeting, Aug. 26-30, Chicago, Il.
Pindzola et al. (Apr. 2001) “Polymerization of a Phosphonium Diene Amphile in the Regular Hexagonal Phase with Retention of Microstructure,”J. Am. Chem. Soc. 123(19):4617-4618.
Pindzola et al. (Feb. 2003) “Cross-Linked Normal Hexagonal and Bicontinuous Cubic Assemblies via Polymerizable Gemini Amphiphiles,”J. Am. Chem. Soc., 125, 2940-2949.
Resel et al. (2000) “Structural Properties of Polymerized Lyotropic Liquid Crystal Phases of 3,4,5-Tris(ω-acryloxyaclkoxy)benzoate Salts,”Macromol. Chem. Phys. 201(11):1128-.
Smith et al. (1997) “Ordered Poly-(p-phenylenevinylene) Matrix Nanocomposites via Lyotropic Liquid-Crystalline Monomers,”J. Am. Chem. Soc. 119:4092-4093.
Srisiri et al. (1997) “Polymerization of the Inverted Hexagonal Phase,”J. Am. Chem. Sic. 119:4866-4873.
Thundathil et al. (1980) “Polymerization in Lyotropic Crystals. I. Change of Structure During Polymerization,”J. Polym. Sci. Polym. Chem. Ed. 18:2629-2640.
Zhou et al. (2005) “Supported Lyotropic Liquid-Crystal Polymer Membranes: Promising Materials for Molecular-Size-Selective Aqueous Nanofiltration,”Adv. Mater. 17(15), 1850-1853.
Zhou et al. (2007) “New Type of Membrane Material for Water Desalination Based on a Cross-Linked Bicontinuous Cubic Lyotropic Liquid Crystal Assembly”,J. Am. Chem. Soc., 129 (31), 9574-9575.

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