A method for preparing silazane polymers is disclosed which comprises reacting under transamination conditions:
(A) one or more silicon amides represented by the general formula:
((R¹)₂N)a-Si(R)b
wherein each R is independently hydrogen or a hydrocarbon group, a is an integer from two to four, b is an integer from zero to two and the sum of a and b equals four; with
(B) one or more polymers.
Also, disclosed are the silazane polymers produced by this method and silicon ceramics produced from these polysilazanes.
本发明公开了一种制备
硅烷聚合物的方法,包括在转
氨基条件下进行反应:
(A) 由通式代表的一种或多种
硅酰胺:
((R¹)₂N)a-Si(R)b
其中每个 R 独立地是氢或烃基,a 是 2 到 4 的整数,b 是 0 到 2 的整数,a 和 b 之和等于 4;与
(B) 一种或多种聚合物。
此外,还公开了用这种方法生产的
硅氮烷聚合物和用这些聚
硅氮烷生产的
硅陶瓷。