Claims
- 1. A process for producing a composite composition comprising a homogeneous inorganic oxide glass monolith with a microporous structure containing a liquid crystalline component, which comprises hydrolyzing tetraalkoxysilane under acidic or basic pH conditions in a sol-gel reaction medium comprising water, a water-miscible organic solvent and a liquid crystalline component, until gellation of the reaction medium is completed, and removing the solvent medium to provide a porous glass monolith with incorporated liquid crystalline component; wherein the glass monolith microporous structure has an average pore diameter in the range between about 50-300 angstroms, and substantially all of the pore diameters are within about a 100 angstrom diameter variation range.
- 2. A composite composition produced in accordance with the sol-gel process of claim 1.
- 3. A process for producing a composite composition comprising an inorganic oxide glass monolith with a microporous structure containing a liquid crystalline component, which comprises (1) hydrolyzing tetraalkoxysilane under acidic or basic pH conditions in a sol-gel reaction medium comprising water and a water-miscible organic solvent until gellation of the reaction medium is completed; (2) removing the solvent medium to provide a porous glass monolith; and (3) impregnating the porous glass monolith with a liquid crystalline component; wherein the glass monolith microporous structure has an average pore diameter in the range between about 50-300 angstroms, and substantially all of the pore diameters are within about a 100 angstrom diameter variation range.
- 4. A composite composition produced in accordance with the sol-gel process of claim 3.
Parent Case Info
This application is a division of application Ser. No. 015,757, filed Apr. 10, 1987, now U.S. Pat. No. 4,814,211.
US Referenced Citations (10)
Foreign Referenced Citations (3)
Number |
Date |
Country |
121415 |
Oct 1984 |
EPX |
50053 |
May 1975 |
JPX |
1068976 |
Jan 1984 |
SUX |
Non-Patent Literature Citations (1)
Entry |
Avnir et al., "Organic fluorescent dyes entrapped . . . by the sol-gel method", J. Non-Crystalline Solids, 74 (1985), pp. 395-406. |
Divisions (1)
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Number |
Date |
Country |
Parent |
15757 |
Apr 1987 |
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