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Covalent Assembly of Hierarchical Particles by Efficient Coupling of β‐Diketones and Benzyl Chloride
Authors:Jianxiong Xu  Da Wang  Na Li  Yaoyao Zhang  Wangqing Zhang  Pingchuan Sun
Abstract:A coupling reaction is performed between polymeric nanoparticles and microparticles via the nucleophilic substitution of pendent β‐diketone groups with benzyl chloride. The coupling reaction results in the formation of hierarchical particles, through the nanoparticles being covalently linked onto the microparticles. The coupling reaction is tracked by TEM and SEM, and the formation of covalent C–C bonds through the coupling reaction between the polymeric nanoparticles and microparticles is confirmed by solid‐state 13C CP‐MAS NMR spectroscopy and XPS. The proposed coupling reaction between the nanoparticles and the microparticles is believed to be a promising strategy in particle‐surface modification.
Keywords:coupling reactions  hierarchical particles  nanoparticles  nucleophilic substitution  surface modification
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