BISACYL DIGERMANIUM COMPOUNDS, THEIR PREPARATION AND THEIR USE AS PHOTOINITIATOR FOR RADICAL POLYMERIZATION
摘要:
The present invention discloses photoinitiators according to the general formula R
1
R
2
R
3
—Ge—Ge—R
4
R
5
R
6
, wherein each R
1
and R
4
is an acyl group, and the use of such photoinitiators for radical polymerization.
An UV study of polymetallic chains of Group IVB elements (Ge, Si) was developed. The studied polygermanes and polygermasilanes were mainly synthetized either by reaction of organolithium with organochlorogermanes or by a Würtz type reaction.