Halogenated polycarbosilanes and processes for preparing them

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

1992-05-05

1993-09-21

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...

556465, 556476, 556477, 528 42, C08G 7760, C08G 7742

Patent

active

052470288

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: 4052430 (1977-10-01), Yajima et al.
patent: 4377677 (1983-03-01), Iwai et al.
patent: 4761458 (1988-08-01), Burns et al.

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