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SP–PLP–EPR Measurement of CuII-Mediated ATRP Deactivation and CuI‑Mediated Organometallic Reactions in Butyl Acrylate Polymerization
journal contribution
posted on 2016-06-23, 14:21 authored by Nicolai Soerensen, Hendrik Schroeder, Michael BubackThe SP–PLP–EPR technique
has been used to measure
CuII-mediated ATRP deactivation and CuI-mediated
organometallic reactions for butyl acrylate (BA) polymerization. The
deactivation rate is by more than 1 order of magnitude higher than
in dodecyl methacrylate (DMA) polymerization, thus enabling well-controlled
ATRP despite the enhanced BA propagation rate. The organometallic
reaction of CuI with BA radicals was found to play a role
only with highly active Cu catalysts, as demonstrated for the Cu/TPMA-mediated
ATRP of BA.