Experimental and computational investigation of oxidative quenching governed aqueous organocatalyzed atom transfer radical polymerization
作者： Chao Bian , Yin-Ning Zhou , Joshua D. Deetz , Zheng-Hong Luo
DOI: 10.1016/J.CEJ.2019.01.087
关键词:
摘要: Abstract A water-soluble organic photoredox catalyst, 3,7-methoxypolyethylene glycol 1-naphthalene-10-phenoxazine (Naph-PXZ-PEG), that can catalyze aqueous organocatalyzed atom transfer radical polymerization (ATRP) via oxidative quenching cycle has been reported for the first time. Comparative studies of Naph-PXZ-PEG and EosinY involved ATRP systems have done experiment kinetic modeling approach. Results showed in system proceeded much faster higher initiator efficiency than reductive Eosin Y under same conditions. Detailed information was presented by experiments density functional theory (DFT) simulation. series kinetics different catalyst loadings, concentrations, “on-off” switch light chain extension conducted confirmed good controllability current high end-group fidelity. This work provides a systematic study on developing an effective water soluble preparation well-defined polymers “green” sustainable ATRP.
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