Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Patent
1994-03-31
1995-05-30
Group, Karl
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
501 32, C03C 1400
Patent
active
054200814
ABSTRACT:
Synthesis of fullerene/glass composites. A direct method for preparing solid solutions of C.sub.60 in silicon dioxide (SiO.sub.2) glass matrices by means of sol-gel chemistry is described. In order to produce highly concentrated fullerene-sol-gel-composites it is necessary to increase the solubility of these "guests" in a delivery solvent which is compatible with the starter sol (receiving solvent). Sonication results in aggregate disruption by treatment with high frequency sound waves, thereby accelerating the rate of hydrolysis of the alkoxide precursor, and the solution process for the C.sub.60. Depending upon the preparative procedure, C.sub.60 dispersed within the glass matrix as microcrystalline domains, or dispersed as true molecular solutions of C.sub.60 in a solid glass matrix, is generated by the present method.
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Koskelo Aaron C.
Love Steven P.
Mattes Benjamin R.
McBranch Duncan W.
Robinson Jeanne M.
Freund Samuel M.
Group Karl
The Regents of the University of California Office of Technology
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