Air-tolerantly surface-initiated AGET ATRP mediated by iron catalyst from silica nanoparticles
作者： Qiang Li , Lifen Zhang , Zhengbiao Zhang , Nianchen Zhou , Zhenping Cheng
DOI: 10.1002/POLA.23968
关键词: Methyl methacrylate 、 Atom-transfer radical-polymerization 、 Catalysis 、 Nanoparticle 、 Polymer chemistry 、 Ascorbic acid 、 Thermogravimetric analysis 、 Reducing agent 、 Chemistry 、 Fourier transform infrared spectroscopy
摘要: Well-defined polymer-nanoparticle hybrids were prepared by a newly reported method: atom transfer radical polymerization using activators generated electron (AGET ATRP) mediated iron catalyst. The kinetics of the surface-initiated AGET ATRP methyl methacrylate from silica nanoparticles, which was FeCl3/triphenylphosphine as catalyst complex, ascorbic acid reducing agent, N,N-dimethylformamide solvent in presence “sacrificial” (free) initiator, studied. Both free and grafted polymers grown control manner. chemical composition nanocomposites characterized Fourier transform infrared spectroscopy, X-ray photoelectron 1H nuclear magnetic resonance spectroscopy. Thermogravimetric analysis used to estimate content organic compound, transmission micrographs observe core-shell structure hybrid nanoparticles. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Chem 48: 2006–2015,
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