Diorganosilacetylene-alt-diorganosilvinylene polymers and a process densifying porous silicon-carbide bodies

Patent · Tue May 17 00:00:00 EDT 1994

OSTI ID:7198435

Barton, T J; Ijadi-Maghsoodi, S; Pang, Y

The present invention provides linear organosilicon polymers including acetylene and vinylene moieties, and a process for their preparation. These diorganosilacetylene-alt-diorganosilvinylene linear polymers can be represented by the formula: --[--(R[sup 1])(R[sup 2])Si--C[triple bond]C-(R[sup 3])(R[sup 4])Si--CH[double bond]CH--][sub n]--, wherein n[>=]2; and each R[sup 1], R[sup 2], R[sup 3], and R[sup 4] is independently selected from the group consisting of hydrogen, halogen, alkyl, alkenyl, aryl, and aralkyl radicals. The polymers are soluble in organic solvents, air stable, and can be pulled into fibers or cast into films. They can be thermally converted into silicon carbide ceramic materials.

• DOE Contract Number: W-7405-ENG-82
• Assignee: Iowa State Univ. Research Foundation, Inc., Ames, IA (United States)
• Patent Number(s): US 5312649; A
• Application Number: PPN: US 8-073589
• OSTI ID: 7198435
• Resource Relation: Patent File Date: 8 Jun 1993
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ORGANIC POLYMERS
PYROLYSIS
SYNTHESIS
SILICON CARBIDES
FABRICATION
MOLECULAR STRUCTURE
ORGANIC SILICON COMPOUNDS
SOLUBILITY
CARBIDES
CARBON COMPOUNDS
CHEMICAL REACTIONS
DECOMPOSITION
ORGANIC COMPOUNDS
POLYMERS
SILICON COMPOUNDS
THERMOCHEMICAL PROCESSES
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication
400201 - Chemical & Physicochemical Properties