Diorganosilacetylene-alt-diorganosilvinylene polymers and a proc

Details Diorganosilacetylene-alt-diorganosilvinylene polymers and a proc Diorganosilacetylene-alt-diorganosilvinylene polymers and a proc

1993-06-08

1994-05-17

Schofer, Joseph L.

Coating processes

Heat decomposition of applied coating or base material

Coating decomposed to form carbide or coating carbonized

427226, C04B 4183

Patent

active

053126491

ABSTRACT:
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.

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