Halogenated polycarbosilanes and processes for preparing them

Details Halogenated polycarbosilanes and processes for preparing them Halogenated polycarbosilanes and processes for preparing them

1990-06-01

1992-07-21

Bleutge, John C.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

528 12, 528 25, 528 33, 528 43, C08F28300

Patent

active

051323753

ABSTRACT:
Halogenated polycarbosilanes with uniform or mixed halogenation prepared from aryl-substituted, particularly phenyl-substituted polycarbosilanes by reaction with halogenating reagents under polar or ionic reaction conditions, optionally in the presence of a Lewis acid catalyst. The halogen atom introduced can optionally subsequently be replaced by another halogen atom through a transhalogenation reaction.

REFERENCES:
patent: 3187031 (1965-06-01), Weyenberg
patent: 4590253 (1986-05-01), Hasegawa et al.
patent: 4761458 (1988-08-01), Burns et al.
patent: 4873297 (1989-10-01), Rengstl
patent: 4879334 (1989-11-01), Hasegawa et al.

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