Process for manufacturing organic silazane polymers and process

Details Process for manufacturing organic silazane polymers and process Process for manufacturing organic silazane polymers and process

1988-06-28

1989-09-26

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Carbide or oxycarbide containing

501 92, 501 97, 501154, 528 14, 528 25, 528 28, 525274, C04B 3552, C08G 7706

Patent

active

048700355

ABSTRACT:
A process for manufacturing an organic silazane polymer which comprises reacting ammonia with a mixture of methyldichlorosilane, methyltrichlorosilane and dimethyldichlorosilane to obtain an ammonolysis product. The ammonolysis product is polymerized in the presence of a basic catalyst capable of deprotonation to obtain an organic silazane polymer. The silazane polymer may be further melted, shaped and infusibilized. The thus infusibilized product is finally sintered to obtain a ceramic material.

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Andrianov, et al., "Reactions of Organocyclosilazanes with Electrophilic and Nucleophilic Reagents", Jour. of Organometallic Chem. 3, (1965) pp. 129-137.
Andrianov et al., "Reactiion of .alpha.,.omega.-Dihydromethylsilazanes with Nucleophilic Reagents", M. V. Lomonosov Moscow Inst. of Fine Chem. Techn., Transl. from Doklady Akademii Nauk SSSR, vol. 176, No. 1, pp. 85-88, Sep. 1967.
Andrianov et al., "Synthesis of Isotopically Substituted Organosilazanes and Some Features of Their IR Spectra", M. V. Lomonosov Moscow Inst. of Fine Chemical Techn., Transl. from Zhurnal Obashchei Akademii, vol. 49, No. 12, pp. 2683-2689, Dec. 1979.

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