Novel Linear Metallocene Polymers Containing Acetylenic and Inorganic Units and Thermosets and Ceramics Therefrom.
Patent Application, Filed 14 Mar 97,
DEPARTMENT OF THE NAVY WASHINGTON DC
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Transition metal containing ceramic or carbonaeous material are formed from novel linear polymers containing a random distribution of repeating acetylenic units, organotransition metal complexes, Siloxane, boron, Silicon, andor carborane-siloxane units. The precursor thermosets are formed by crosslinking of the linear polymers through the acetylenic units in the polymer backbone. The ceramics may also be formed directly by pyrolysis of the linear polymers. The preceramic polymers are potentially useful for fabricating ceramic fibers and composite materials having enhanced strength, hardness and toughness as well as superior mechanical, optical, electrical andor magnetic properties.
- Polymer Chemistry
- Ceramics, Refractories and Glass
- Laminates and Composite Materials