No Reduction of CuBr2 during Cu(0)-Catalyzed Living Radical Polymerization of Methyl Acrylate in DMSO at 25 °C
作者： Martin E. Levere , Nga H. Nguyen , Virgil Percec
DOI: 10.1021/MA301547N
关键词: Chemistry 、 Methyl acrylate 、 Monomer 、 Polymerization 、 Absorbance 、 Nitroxide mediated radical polymerization 、 Polymer chemistry 、 Catalysis 、 Polymer 、 Radical polymerization
摘要: The Cu(0)/Me6-TREN-catalyzed polymerization of methyl acrylate (MA) initiated by 2-bromopropionate (MBP) in DMSO at 25 °C was performed a UV cuvette, and the absorbance CuBr2 monitored online UV–vis spectrophotometer as function monomer conversion. A continuous increase throughout reaction demonstrated no reduction concentration during entire process. In addition, 100% chain-end functionality polymer observed from 10% to 95% conversion indicated that this bimolecular termination required provide persistent radical effect ATRP not responsible for production CuBr2.
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