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    • 5. 发明授权
    • Process for manufacturing organic silazane polymers and ceramics
therefrom
    • 从其制造有机硅氮烷聚合物和陶瓷的方法
    • US4869854A
    • 1989-09-26
    • US114111
    • 1987-10-27
    • Yoshihumi TakedaMinoru TakamizawaAkira Hayashida
    • Yoshihumi TakedaMinoru TakamizawaAkira Hayashida
    • C03B8/02C04B35/571C04B35/589C08G77/62C08L83/16
    • C08L83/16C04B35/571C04B35/589C08G77/62
    • A process for manufacturing an organic silazane polymer which comprises reacting ammonia with a mixture of at least one compound selected from the group consisting of organic silicon compounds of the following formulae (I) and (II) ##STR1## and at least one compound selected from the group consisting of organic silicon compounds of the following formula (III) ##STR2## in which R represents hydrogen, chlorine, bromine, methyl radical, ethyl radical, phenyl radical or vinyl radical, R.sub.1 represents hydrogen or methyl radical, R.sub.2 represents hydrogen, methyl radical, ethyl radical, phenyl radical or vinyl radical and X represents chlorine or bromine; to obtain an ammonolysis product. The ammonolysis product is polymerized in the presence of a basic catalyst capable of deprotonation to obtain an organic silazane polymer. The silazane polymer may be further melted, shaped and infusibilized. The thus infusibilized product is finally sintered to obtain a ceramic material.
    • 一种制备有机硅氮烷聚合物的方法,其包括使氨与至少一种选自下式(I)和(II)的有机硅化合物的化合物的混合物反应:(IMA) II)和选自下式(III)的有机硅化合物(III)中的至少一种化合物,其中R表示氢,氯,溴,甲基,乙基,苯基或乙烯基 R1表示氢或甲基,R2表示氢,甲基,乙基,苯基或乙烯基,X表示氯或溴; 以获得氨解产物。 氨解产物在能够去质子化的碱性催化剂存在下聚合,得到有机硅氮烷聚合物。 硅氮烷聚合物可以进一步熔融,成型和不熔化。 将这样的不熔化产物最终烧结得到陶瓷材料。