Method of producing polysilazanes

Details Method of producing polysilazanes Method of producing polysilazanes

1985-04-26

1986-09-16

Shaver, Paul F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Silicon containing

528 15, C07F 710

Patent

active

046123830

ABSTRACT:
Method of producing polysilazanes from precursors having Si-H, Si-N or Si-Si bonds in the presence of a catalyst effective to activate such bonds. The catalyst may be a metal complex, e.g. a carbonyl cluster, which is soluble in an organic solvent and is homogeneous or it may be a heterogeneous catalyst. Higher polymers, and/or less crosslinking and oligomer formation, and/or greater control over the product and/or faster reactions and/or greater yields result. The polymers are soluble in common organic solvents and/or are solids which can be shaped. The products can be pyrolyzed to silicon nitride or used without pyrolysis.

REFERENCES:
patent: 2579418 (1951-12-01), Cheronis
patent: 3007886 (1961-11-01), Parker
patent: 3393218 (1968-07-01), Van Wazer et al.
patent: 4482669 (1984-11-01), Seyferth et al.

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