Nanocomposites and methods for synthesis and use thereof
First Claim
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1. A process for producing a layered organo-metal nanoparticle, comprising:
- providing a first phase comprising a plurality of liquid crystal monomers, the liquid crystal monomers each comprising an organic mesogen and a functional group, the liquid crystal monomers each having a long axis, the long axis having a first terminus and a second terminus, wherein the functional group is bonded to the first terminus;
providing a second phase comprising a source of metal ions;
placing a two-phase mixure of the plurality of liquid crystal monomers and the source of metal ions in a reaction vessel under reaction conditions sufficient to form a liquid crystal structure comprising the plurality of liquid crystal monomers; and
reacting the metal ions and the functional group of the plurality of liquid crystal monomers to form a bond between the metal ions and the functional group of the plurality of liquid crystal monomers yielding a lamellar organo-metal nanoparticle.
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Abstract
Nanocomposite compositions and methods of synthesis of the compositions are described. In particular, liquid crystal-functionalized nanoparticles, liquid crystal-templated nanoparticles, nanocomposite compositions including the nanoparticles, and composite compositions including the nanocomposites are detailed.
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Citations
24 Claims
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1. A process for producing a layered organo-metal nanoparticle, comprising:
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providing a first phase comprising a plurality of liquid crystal monomers, the liquid crystal monomers each comprising an organic mesogen and a functional group, the liquid crystal monomers each having a long axis, the long axis having a first terminus and a second terminus, wherein the functional group is bonded to the first terminus; providing a second phase comprising a source of metal ions; placing a two-phase mixure of the plurality of liquid crystal monomers and the source of metal ions in a reaction vessel under reaction conditions sufficient to form a liquid crystal structure comprising the plurality of liquid crystal monomers; and reacting the metal ions and the functional group of the plurality of liquid crystal monomers to form a bond between the metal ions and the functional group of the plurality of liquid crystal monomers yielding a lamellar organo-metal nanoparticle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A nanoparticle composition, comprising:
a plurality of organic liquid-crystal monomers bound to a lamellar metal-containing nanoparticle, wherein the lamellar metal-containing nanoparticles comprise a metal selected from the group consisting of;
hafnium, tantalum, tungsten and zirconium.- View Dependent Claims (15, 16, 22, 23, 24)
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17. A process for producing a layered organo-metal nanoparticle, comprising:
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providing an exfoliated suspension of nanoparticles, the nanoparticles each having a first ion exchange group; providing a plurality of liquid crystal monomers, the liquid crystal monomers each comprising an organic mesogen and a terminal ion exchange group, the liquid crystal monomers each having a long axis, the long axis having a first terminus and a second terminus, wherein the terminal ion exchange group is bonded to the first terminus; mixing the nanoparticle suspension and the plurality of liquid crystal monomers to create a reaction mixture; exposing the reaction mixture to ion exchange reaction conditions such that ion exchange occurs between the first ion exchange group of the nanoparticles and the terminal ion exchange group of the liquid crystal monomers, creating bonds between the nanoparticles and the liquid crystal monomers, yielding a lamellar liquid crystal-functionalized nanoparticle. - View Dependent Claims (18, 19, 20, 21)
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Specification