n-butyl acrylate in the presence of TEMPO, we investigated the use of 2,2
-azobis(N-butyl-2-methylpropionamide), a high temperature initiator with a 10 h half-life of 110 C. The addition of a small amount (6.4 lmol, Table 3, entry 2) of this azo initiator at the beginning of the polymerization resulted in only a conversion of 9% after 24 h