Abstract
Kinetics of the cyclohexyl vinyl ether (CHVE) cationic polymerization, initiated by HI in the presence of ammonium salts (nBu 4 NX, with X=Cl, Br, I), have been investigated. It has been shown that the presence of minute amounts of added salt ([nB 4 NX]/[HI]≤1%) are sufficient to induce a «living» process. In the same time, the polymerization rate drastically decreases, suggesting a common ion salt effect and therefore an ionic-type polymerization mechanism. For a [nBu 4 NI]/[HI] ratio higher than 1%, the apparent polymerization rate constant remains invariable, up to a very high amount of salt, in agreement with the only contribution of ion pairs
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