Synthesis of novel amorphous boron carbonitride ceramics from the borazine derivative copolymer via hydroboration.

A preceramic polymer for boron carbonitride was synthesized for the first time by the hydroboration of borazine derivatives, B-triethynyl, N-trimethyl borazine and borazine, without a catalyst. A homogeneous, amorphous boron carbonitride ceramic was prepared by the thermolysis of a hydroborated copolymer in an argon atmosphere.