US 6,673,953 B2Granted

Polymeric and carbon compositions with metal nanoparticles

AssigneeThe United States of America as represented by the Secretary of the Navy

InventorsTeddy M. Keller, Joseph Perrin, Syed B. Qadri

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Abstract

The invention comprises a chemical composition with the structure shown below. The composition can be polymerized or pyrolyzed, forming transition metal nanoparticles homogeneously dispersed in a thermoset or carbon composition. The size of the nanoparticles can be controlled by manipulating the number and arrangement of functional groups in the composition and by changing the conditions of the polymerization or pyrolysis. The resulting thermosets and carbon compositions have useful magnetic, electric, mechanical, catalytic and/or optical properties. wherein A is selected from the group consisting of H, wherein M is a metal selected independently from the group consisting of Fe, Mn, Ru, Co, Ni, Cr and V; wherein Rx is independently selected from the group consisting of an aromatic, a substituted aromatic group and combinations thereof; wherein Ry is independently selected from the group consisting of an aromatic, a substituted aromatic group and combinations thereof; wherein m is ≧0; wherein s is ≧0; wherein z is ≧0; and wherein m and s are independently determined in each repeating unit.

Claims14

Dependent claims

A chemical composition comprising the formula:

wherein when z is 0, then A is selected from the group consisting of metallocenylethynyl, and phenylethynyl;
wherein when z is 1, s is 0, and m is 1, then A is selected from the group consisting of metallocenylethynyl and phenylethynyl;
wherein when z is 1, s is 1, and m is 1, then A is selected from the group consisting of H and phenylethynyl;
wherein when z is 2, s is 0 in the repeating unit adjacent to A, and m is 0 in the repeating unit adjacent to A, then A is selected from the group consisting of H and phenylethynyl;
wherein when z is 2, s is 0 in the repeating unit adjacent to A and m is 1 in the repeating unit adjacent to A, then A is selected from the group consisting of metallocenylethynyl and phenylethynyl;
wherein when z is 3, s is 0 in the repeating unit adjacent to A, and m is 1 in the repeating unit adjacent to A, then A is selected from the group consisting of metallocenylethynyl and phenylethynyl;
wherein in all other cases A is selected from the group consisting of H, metallocenylethynyl, and phenylethynyl;
wherein M is a metal selected independently from the group consisting of Fe, Mn, Ru, Co, Ni, Cr and V;
wherein Rx is independently selected from the group consisting of an aromatic, a substituted aromatic group and combinations thereof;
wherein Ry is independently selected from the group consisting of an aromatic, a substituted aromatic group and combinations thereof;
wherein m is ≧0;
wherein s is ≧0;
wherein z is ≧0;
and
wherein m and s are independently determined in each repeating unit.

12 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/006,226Filed 10 Dec 2001
Published: US 2003/0114698 A119 Jun 2003
Granted: 6 Jan 2004
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

D01F 9/127
Carbon filaments; Apparatus specially adapted for the manufacture thereof: by thermal decomposition of hydrocarbon gases or vapours or other…
B82Y 30/00
Nanotechnology for materials or surface science
Y10S 977/773
Nanostructure: nanoparticle, i.e. structure having three dimensions of 100 nm or less
Y10S 977/775
Nanoparticle, i.e. structure having three dimensions of 100 nm or less: nanosized powder or flake, e.g. nanosized catalyst