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Diorganosilacetylene-alt-diorganosilvinylene polymers and a process of preparation

Patent ·
OSTI ID:868905
 [1];  [1];  [1]
  1. Ames, IA
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The present invention provides linear organosilicon polymers including acetylene and vinylene moieties, and a process for their preparation. These diorganosilacetylenealt-diorganosilvinylene linear polymers can be represented by the formula: --[--(R.sup.1)(R.sup.2)Si--C.ident.C--(R.sup.3)(R.sup.4)Si--CH=CH--].sub.n --, wherein n.gtoreq.2; 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 5241029
Application Number:
07/817,602
OSTI ID:
868905
Country of Publication:
United States
Language:
English

References (6)

6. Acronyms journal August 1983
Efficient, “one-pot” synthesis of silylene–acetylene and disilylene–acetylene preceramic polymers from trichloroethylene journal April 1990
Nouvelle possibilite offerte par les ballons: Le vol Boomerang journal April 1983
Exploring novel silicon-containing polymers---From preceramic polymers to conducting polymers with nonlinear optical properties report October 1991
Thermal and catalytic polymerization of diethynyldiphenylsilane journal March 1991
Synthesis and study of silylene-diacetylene polymers journal October 1990

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