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Covalent Assembly of Hierarchical Particles by Efficient Coupling of β‐Diketones and Benzyl Chloride
Author(s) -
Xu Jianxiong,
Wang Da,
Li Na,
Zhang Yaoyao,
Zhang Wangqing,
Sun Pingchuan
Publication year - 2011
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201100448
Subject(s) - covalent bond , coupling reaction , nanoparticle , benzyl chloride , nucleophilic substitution , materials science , chloride , polymer chemistry , x ray photoelectron spectroscopy , nuclear magnetic resonance spectroscopy , chemistry , chemical engineering , organic chemistry , nanotechnology , catalysis , engineering
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 13 C 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.