Novel bis(siloxane) derivatives and a process for their manufact

Details Novel bis(siloxane) derivatives and a process for their manufact Novel bis(siloxane) derivatives and a process for their manufact

1988-09-15

1989-05-02

Shaver, Paul F.

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

Organic compounds

Silicon containing

C07F 708, C07F 718

Patent

active

048270075

ABSTRACT:
The present invention relates to the preparation of bis(siloxane) derivatives of the chemical formula(I) which are useful for as an initiator to group transfer polymerization.
The initiators of the formula(I) can be obtained from reacting lithium diisoalkylamide of the formula (III) and diester compounds of the formula(IV) with trialkylchlorosilicon of the formula(V) ##STR1## Wherein, R and R' stand for a straight or branched chain of aliphatic hydrocarbons, n is integer of 0-2. ##STR2## Wherein R is the same as the R in formula(I) ##STR3## Wherein R and n are the same as the R and n in the formula(I)

REFERENCES:
patent: 3254132 (1966-05-01), Wotil et al.
patent: 4277610 (1981-07-01), Cohen

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