IP Library › Granted Patent US 7,786,188
Granted Patent B2
US 7,786,188 · App. 11/384,910 · Granted Aug 31, 2010

Nanocomposites of dendritic polymers

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Quick Facts
Patent No.
US 7,786,188
App. No.
11/384,910
Granted
Aug 31, 2010
Kind
B2
Abstract

In the present invention, an inorganic reactant is, or reactants are, localized with respect to a dendritic polymer by physical constraint within or by a non-covalent conjugation to the dendritic polymer. The localized inorganic reactant or reactants is/are subsequently transformed to form a reaction product which is immobilized with respect to the dendritic polymer. This immobilization occurs on a nanoscopic scale as a consequence of the combined effects of structural, chemical and physical changes without having covalent bonds between the product(s) and the dendritic container and results in new compositions of matter called dendritic nanocomposites. The resulting nanocomposite material can be used to produce revolutionary products such as water soluble elemental metals, with specific applications including magnetic resonance imaging, catalytic, magnetic, optical, photolytic and electroactive applications.

Claims (7)

1. A metal-containing complex exhibiting improved solvent dispersibility, comprising a metal compound selected from the group consisting of metal halogenides and metal hydroxides, which is insoluble or substantially insoluble in water or organic solvent, complexed with a 4-6 generation star dendritic polymer, which is soluble in water or the organic solvent,

wherein the metal of the metal halogenides is silver and the metal of the metal hydroxides is silver, aluminum, copper or cobalt.

2. The metal-containing complex of claim 1 , wherein the dendritic polymer is hydrophobically modified.

3. The metal-containing complex of claim 2 , wherein the dendritic polymer is hydrophobically modified by reaction with an epoxy alkane.

4. A metal containing complex exhibiting improved solvent dispersibility, comprising a metal compound, which is insoluble or substantially insoluble in water or organic solvent and is encapsulated in a 4-6 generation star dendritic polymer, which is soluble in water or the organic solvent,

wherein the metal compound is selected from the group consisting of metal halogenides and metal hydroxides,

wherein the metal of the metal halogenides is silver and the metal of the metal hydroxides is silver, aluminum, copper or cobalt.