Method of making metal-doped organic foam products

Patent · Mon Apr 13 23:00:00 EST 1981

OSTI ID:6198481

Rinde, J A

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 4261937
• OSTI ID: 6198481
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360301* -- Composite Materials-- Preparation & Fabrication-- (-1987)
42 ENGINEERING
420300 -- Engineering-- Lasers-- (-1989)
ALKALI METAL COMPOUNDS
ALKALI METALS
COLLOIDS
DISPERSIONS
DOPED MATERIALS
ELEMENTS
FABRICATION
FLUORIDES
FLUORINE COMPOUNDS
FOAMS
GELS
HALIDES
HALOGEN COMPOUNDS
LASERS
LYOPHILIZATION
MATERIALS
METALS
RUBIDIUM
RUBIDIUM COMPOUNDS
RUBIDIUM FLUORIDES
SOLVENTS
X-RAY LASERS