Metal-doped organic foam
Organic foams having a low density and very small cell size and method for producing same in either a metal-loaded or unloaded (Nonmetal loaded) form are described. Metal-doped foams are produced by soaking a polymer gel in an aqueous solution of desired metal salt, soaking the gel successively in a solvent series of decreasing polarity to remove water from the gel and replace it with a solvent of lower polarity with each successive solvent in the series being miscible with the solvents on each side and being saturated with the desired metal salt, and removing the last of the solvents from the gel to produce the desired metal-doped foam having desired density cell size, and metal loading. The unloaded or metal-doped foams can be utilized in a variety of applications requiring low density, small cell size foam. For example, rubidium-doped foam made in accordance with the invention has utility in special applications, such as in x-ray lasers.
- Assignee:
- Dept. of Energy
- Patent Number(s):
- US 4325737
- OSTI ID:
- 5119312
- Resource Relation:
- Patent File Date: Filed date 16 Oct 1980; Other Information: PAT-APPL-197465
- Country of Publication:
- United States
- Language:
- English
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Method of making metal-doped organic foam products
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Related Subjects
42 ENGINEERING
DOPED MATERIALS
FABRICATION
FOAMS
AQUEOUS SOLUTIONS
CELLULOSE ESTERS
DENSITY
GELS
NITRILES
ORGANIC POLYMERS
POLAR COMPOUNDS
POLYMERS
POTASSIUM CHLORIDES
RUBIDIUM FLUORIDES
SODIUM CHLORIDES
SOLVENTS
X-RAY LASERS
ALKALI METAL COMPOUNDS
CHLORIDES
CHLORINE COMPOUNDS
COLLOIDS
DISPERSIONS
ESTERS
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
LASERS
MATERIALS
MIXTURES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
RUBIDIUM COMPOUNDS
SODIUM COMPOUNDS
SOLUTIONS
360401* - Polymers & Plastics- Preparation & Fabrication- (-1987)
420800 - Engineering- Electronic Circuits & Devices- (-1989)
420300 - Engineering- Lasers- (-1989)