Fabrication of hollow polyelectrolyte nanospheres via surface-initiated atom transfer radical polymerization |
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| Authors: | Xiaoyan He Wu Yang Li Yuan Xiaowei Pei Jinzhang Gao |
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| Affiliation: | 1. Key Laboratory of Pesticide & Chemical Biology, Ministry of Education and School of Chemistry, Central China Normal University, Wuhan 430079, PR China;2. College of Chemistry and Chemical Engineering, Luoyang Normal University, Luoyang 471022, PR China;3. Institute of Resources & Environment, Henan Polytechnic University, Jiaozuo 454150, PR China |
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| Abstract: | Novel polyelectrolyte-grafted core-shell organic/inorganic hybrid nanospheres which possess hard backbone of silica nanoparticles and soft shell of cross-linked poly(ionic liquids) (PILs) have been synthesized via a surface-initiated atom transfer radical polymerization (SI-ATRP). After removal of the core templates of the core-shell nanospheres, nearly monodispersed hollow polyelectrolyte nanospheres were obtained. Various characterization techniques including FT-IR, XPS, and TEM were used to characterize the resulting core-shell and hollow polyelectrolyte nanospheres. The results showed that the hollow nanosphere has a hollow core of an average diameter of ca. 200 nm with a shell thickness of ca. 25 nm. The obtained hollow polyelectrolyte nanospheres could be applied in release-control systems. |
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