(+)CSA] are prepared and characterized by specific rotation. The asymme-trically stereoselective induction of the initiators and catalysts in the polymerization ofN-vinylcarbazole is in an order of A
+
B
-
>
A
+
B
-
>
A
+
B
-
. The specific rotations ofobtained poly (N-vinylcarbazole ) (PVCZ) generally are in accordance with mentioned order.
Abstract
The organic salts as initiators [A
+
B
-
:Ph
3
C
+
ClO
4
-
Ph
3
C
+
SbCl
6
-
(-)Sp
+
ClO
4
-
and(-)(Sp)
2
+3
(ClO
4
)
3
] and catalysts [A
+
B
-
:(+)CSA
A
+
B
-
:Ph
3
C
+
(+)CSA
-
and(-)Sp
+
(+)CSA] are prepared and characterized by specific rotation. The asymme-trically stereoselective induction of the initiators and catalysts in the polymerization ofN-vinylcarbazole is in an order of A
+
B
-
>
A
+
B
-
>
A
+
B
-
. The specific rotations ofobtained poly (N-vinylcarbazole ) (PVCZ) generally are in accordance with mentioned order.
关键词
Keywords
references
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