Abstract
A facile method is proposed to prepare functionalized Fe3O4@Me6TREN nanoparticles (NPs) for atom transfer radical polymerization (ATRP). The Me6TREN moieties on NPs surface can bind copper, thus making them effective nano ligands for ATRP reactions to synthesize bottlebrush copolymers. After polymerization, purification of the polymer achieved only by a magnet, is much simpler than traditional ATRP process. No column chromatography is required. Furthermore, Fe3O4@Me6TREN NPs can thus be regenerated via separating copper from NPs surface by ligand exchange with EDTA-Na2. Such a versatile nano ligand is of great worth to promote the industrial application of ATRP at a large scale and low cost.
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