C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
23/195
C08G 77/62 (2006.01) C04B 35/571 (2006.01) C04B 35/584 (2006.01) C04B 35/589 (2006.01) C08F 2/04 (2006.01) C08F 8/42 (2006.01)
Patent
CA 1231515
Abstract of the Disclosure A preceramic polymer which is a polysilazane is described. It is made by reacting an organodihalosilane with ammonia to form an ammonolysis product, and treating the ammonolysis product with a basic catalyst capable of deprotonating an NH group that is adjacent to an SiH group to form said polymer. The polymer is preferrably further treated with an electrophilic reagent. These polymers are useful for making various ceramic products.
472455
Seyferth Dietmar
Wiseman Gary H.
Marcoux & Sher Swabey Mitchell Houle
Massachusetts Institute Of Technology
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