Diorganosilacetylene-alt-diorganosilvinylene polymers and a process densifying porous silicon-carbide bodies
Patent
·
OSTI ID:869303
- Ames, IA
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.tbd.C--(R.sup.3)(R.sup.4)Si--CH=CH--].sub.n-- , wherein n.gtoreq.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.
- Research Organization:
- Ames Laboratory (AMES), Ames, IA; Iowa State University, Ames, IA (US)
- DOE Contract Number:
- W-7405-ENG-82
- Assignee:
- Iowa State University Research Foundation, Inc. (Ames, IA)
- Patent Number(s):
- US 5312649
- Application Number:
- 08/073,589
- OSTI ID:
- 869303
- Country of Publication:
- United States
- Language:
- English
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journal | March 1991 |
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Related Subjects
/427/
acetylene
air
air stable
alkenyl
alkyl
alkyl radical
aralkyl
aralkyl radicals
aryl
bodies
c--
carbide
carbide bodies
carbide ceramic
cast
ceramic
ceramic mater
ceramic material
ceramic materials
ch--
consisting
converted
densifying
diorganosilacetylene-alt-diorganosilvinylene
diorganosilacetylene-alt-diorganosilvinylene polymers
fibers
films
formula
gtoreq
halogen
hydrogen
including
including acetylene
independently
independently selected
linear
linear organosilicon
linear polymers
materials
moieties
n--
organic
organic solvent
organic solvents
organosilicon
organosilicon polymer
organosilicon polymers
polymers
polymers including
porous
porous silicon
preparation
process
provides
provides linear
pulled
radicals
represented
selected
si--c
si--ch
silicon
silicon carbide
silicon-carbide
soluble
solvents
stable
tbd
thermally
thermally converted
vinylene
vinylene moieties
acetylene
air
air stable
alkenyl
alkyl
alkyl radical
aralkyl
aralkyl radicals
aryl
bodies
c--
carbide
carbide bodies
carbide ceramic
cast
ceramic
ceramic mater
ceramic material
ceramic materials
ch--
consisting
converted
densifying
diorganosilacetylene-alt-diorganosilvinylene
diorganosilacetylene-alt-diorganosilvinylene polymers
fibers
films
formula
gtoreq
halogen
hydrogen
including
including acetylene
independently
independently selected
linear
linear organosilicon
linear polymers
materials
moieties
n--
organic
organic solvent
organic solvents
organosilicon
organosilicon polymer
organosilicon polymers
polymers
polymers including
porous
porous silicon
preparation
process
provides
provides linear
pulled
radicals
represented
selected
si--c
si--ch
silicon
silicon carbide
silicon-carbide
soluble
solvents
stable
tbd
thermally
thermally converted
vinylene
vinylene moieties