作者: Wibke Meiser , Michael Buback
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摘要: We have presented an EPR-based approach for deducing the RAFT equilibrium constant, K(eq), of a dithiobenzoate-mediated system [Meiser, W. and Buback M. Macromol. Rapid Commun. 2011, 32, 1490]. Our value is by four orders magnitude below K(eq) from ab initio calculations identical monomer-free system. Junkers et al. [Macromol. 1891] claim that our EPR would be model dependent data could equally well fitted assuming slow addition radicals to agent fragmentation so-obtained intermediate radical as high cross-termination rate. By identification all side products, method shown independent provide reliable values, which demonstrate validity termination model.