AMINATED POLYSILAZANE AND PROCESS FOR THE PREPARATION THEREOF

摘要

An aminated polysilazane having a number-average molecular weight of 100 to 100,000, containing in the molecular chain a silazane structure represented by general formula (I) or (II), (wherein R<1> and R<2> are each hydrogen, hydrocarbyl or hydrocarbylsilyl; A and A<2> are each a divalent hydrocarbon group; B is an amine residue substituted with one or two hydrocarbon groups on the nitrogen atom or a cyclic amine residue; B<2> is a divalent linear amine residue or a divalent cyclic amine residue; and p and q are each 1 or 0). The aminated polysilazane can be prepared by reacting a polysilazane with a mono- and/or dihydroxy compound having an amine residue in an inert organic solvent free from active hydrogen.