Cationic polymerization of N-Vinylcarbazol (NVC) was initiated with 1-
iodo-1-(2-methylpropyloxy)ethane (1) in the presence of N(n-Bu)(4)Clo(
4) and without addition of this activator. Furthermore, 1-chloro-1-(2-
methylpropyloxy)ethane (2), with and without activator has been applie
d as initiator for NVC. These initiating systems show remarkable diffe
rences in activity, which are discussed in detail.