Preparation of boron/nitrogen preceramic polymers

Details Preparation of boron/nitrogen preceramic polymers Preparation of boron/nitrogen preceramic polymers

1989-04-03

1991-05-14

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

264 65, C04B 3546, C04B 3548

Patent

active

050156071

ABSTRACT:
Boron
itrogen preceramic polymers are prepared by reacting (a) the product of mass thermolysis of a compound of Formula (1): ##STR1## in which A is a halogen atom and R is a hydrogen atom, a hydrocarbon radical, or an organosilyl or hydrogenoorganosilyl radical, with (b) an amino compound containing at least one --NH.sub.2 group; the resulting polymers are facilely pyrolyzed into boron nitride ceramic materials.

REFERENCES:
patent: 4565747 (1986-01-01), Nakae et al.
patent: 4581468 (1986-04-01), Paciorek
patent: 4590034 (1986-05-01), Hirano et al.
patent: 4714599 (1987-12-01), Sato et al.
patent: 4857490 (1989-08-01), Johnson
patent: 4865830 (1989-09-01), Klabunde et al.
patent: 4939222 (1990-07-01), Mignani et al.
Buro, A. B. and Banus, J., "The Reaction of Boron Trifluoride with Tetramethylamino Borine", J. Am. Chem. Soc., 76, p. 3903, Aug. 5, 1954.

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