10.1021/acs.macromol.6b00760.s001 Nicolai Soerensen Nicolai Soerensen Hendrik Schroeder Hendrik Schroeder Michael Buback Michael Buback SP–PLP–EPR Measurement of Cu<sup>II</sup>-Mediated ATRP Deactivation and Cu<sup>I</sup>‑Mediated Organometallic Reactions in Butyl Acrylate Polymerization American Chemical Society 2016 organometallic reactions DMA measure Cu II deactivation rate dodecyl methacrylate BA propagation rate butyl acrylate Butyl Acrylate Polymerization Cu catalysts organometallic reaction BA radicals Mediated ATRP Deactivation SP ATRP deactivation Cu II 1 order 2016-06-23 14:21:12 Journal contribution https://acs.figshare.com/articles/journal_contribution/SP_PLP_EPR_Measurement_of_Cu_sup_II_sup_-Mediated_ATRP_Deactivation_and_Cu_sup_I_sup_Mediated_Organometallic_Reactions_in_Butyl_Acrylate_Polymerization/3459008 The SP–PLP–EPR technique has been used to measure Cu<sup>II</sup>-mediated ATRP deactivation and Cu<sup>I</sup>-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 Cu<sup>I</sup> 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.