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A simple way of preparing large compound vesicles loaded with and without silver nanoparticles based on polystyrene-block-polyacrylonitrile

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Abstract

By a simple method, large compound vesicles (LCVs) and LCVs with silver nanoparticles (Ag@LCVs) are created from asymmetric polystyrene-block-polyacrylonitrile (PS-b-PAN) and silver precursor. The asymmetric PS-b-PAN is polymerized by sequential reverse atom transfer radical polymerization and atom transfer radical polymerization. Afterwards, by using N,N′-dimethylformamide as solvent and reductant for the silver precursor, LCVs and Ag@LCVs are produced through simple drop casting and evaporation of solution on the substrate. Transmission electron microscope images together with scanning electron microscopy images show that both LCVs and Ag@LCVs are flowerlike and of rough surfaces. Ultraviolet-visible spectrophotometer confirms the formation of Ag nanoparticles (Ag NPs). Specifically, the distribution of Ag NPs in Ag@LCVs is not uniform and they are principally in the center. Otherwise, adherence of simple vesicles and small hybrid nanoparticles of Ag NPs encapsulated within PS-b-PAN are observed. Finally, formation mechanisms for LCVs and Ag@LCVs are discussed.

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Acknowledgments

This work is financially supported by Key Program of Natural Science Foundation of Shaanxi Province (2009JZ004), Basic Research Foundation of Northwestern Polytechnical University (JC201158) and Entrepreneurship Seed Fund of postgraduate in Northwester Polytechnical University (Z2012157).

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Authors and Affiliations

  1. Department of Applied Chemistry, School of Applied and Natural Sciences, Northwestern Polytechnical University, Xi’an, China

    Lin Tang, Xiaoyan Ma, Ying Song & Jie Yu

  2. Key Laboratory of Macromolecular Science & Technology of Shaanxi Province, Xi’an, China

    Xiaoyan Ma

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  1. Lin Tang
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  2. Xiaoyan Ma
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  3. Ying Song
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  4. Jie Yu
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Correspondence to Xiaoyan Ma.

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Tang, L., Ma, X., Song, Y. et al. A simple way of preparing large compound vesicles loaded with and without silver nanoparticles based on polystyrene-block-polyacrylonitrile. Colloid Polym Sci 291, 893–902 (2013). https://doi.org/10.1007/s00396-012-2806-8

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  • DOI: https://doi.org/10.1007/s00396-012-2806-8

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