| 摘要 |
PURPOSE:To produce a polyborosilazane useful as a ceramic precursor of high heat decomposition yields by adding an aminoborane compound to a dihalosilane and reacting them with ammonia. CONSTITUTION:This polyborosilazane is produced by adding an aminoborane having a residue of formula I or II to a dihalosilazane represented by the formula: RnH(2n)SiX2 (wherein X is halogen; R is alkyl; and n is an integer of 0-2), and at the same time or immediately reacting them with ammonia. Examples of the aminoborane compounds include aminoborane, aminodimethylborane, dimethyl(methyl)aminoborane, methylbis(methylamino)borane and tris(methylamino)borane. |
