Controlled polymerization of silazane monomers

Details Controlled polymerization of silazane monomers Controlled polymerization of silazane monomers

1989-10-16

1991-08-06

Marquis, Melvyn I.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From silicon reactant having at least one...

528 12, 528 28, 528 34, C08G 7706

Patent

active

050379330

ABSTRACT:
Organopolysilazanes or organopoly(disilyl)-silazanes having controlled physicochemical properties, well adapted for shaping and pyrolysis into useful ceramic articles, are prepared by catalytically polymerizing a silazane monomer to a desired degree of polymerization, and then, either during or upon completion of polymerization, contacting the polymerization reaction medium with at least one ion exchange material.

REFERENCES:
patent: 3322722 (1967-05-01), Eynon
patent: 4861844 (1989-08-01), Lebrun et al.

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