
1: CARBAZOLE POLYMERS 3
N
I
R
I
N
R = (CH
2
)
n
KOH, BrRBr
N
I
N
KJ, KJO
3
, CH
3
COOH
FeCl
3
,CHCl
3
N
N
Figure 1.3 Synthesis of adducts suitable for
ullmann
condensation.
Polymers with 3,3
-dicarbazolyl units in the main
chain can be synthesized [14]. In the first step, adducts
with pendant iodine groups are synthesized as shown
in Figure 1.3.
Polymers with di(carbazol-3-yl)phenylamine and
N,N
-di(carbazol-3-yl)-N,N
-diphenyl-1,4-phenylene-
diamine units in the main chain can be synthesized
by a modified Ullmann condensation [15]. The
mechanism is shown schematically in Figure 1.4.
The glass transition temperatures range from 102 to
216
◦
C.
1.2 Polymerization and Fabrication
1.2.1 ...