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Hollow polymer microspheres containing a gold nanocolloid core adsorbed on the inner surface as a catalytic microreactor

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Abstract

Hollow polymer microspheres with different polarity and functional group for the shell layer containing gold nanocolloid cores adsorbed on the inner surface were prepared by selective removal of sandwiched silica layer from the corresponding gold/silica/polydivinylbenzene (Au/SiO2/PDVB), Au/SiO2/poly(ethyleneglycol dimethacrylate) (Au/SiO2/PEGDMA), and Au/SiO2/poly(ethyleneglycol dimethacrylate-co-methacrylic acid) (Au/SiO2/P(EGDMA-co-MAA) tri-layer microspheres, respectively. The tri-layer microspheres were synthesized by distillation precipitation polymerizations of divinylbenzene (DVB), ethyleneglycol dimethacrylate (EGDMA), EGDMA together with methacrylic acid (MAA) in presence of 3-(methacryloxy)propyltrimethoxysilane (MPS)-modified gold/silica (Au/SiO2) core–shell particles as seeds, which were prepared by coating of a layer of silica onto the surface of Au nanocolloids with the aid of polyvinylpyrrolidone (PVP) via a modified Stöber method. The catalytic property and stability as a microreactor of the hollow polymer microspheres with Au nanocolloid cores adsorbed on the inner surface were studied by the reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AnP) with sodium borohydride (NaBH4) as reductant. Transmission electron microscopy (TEM) and Fourier transform infrared spectra (FT-IR) were used for characterizing the morphology and structure of the resultant microspheres.

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Acknowledgement

This work was supported by the National Foundation of China with project No.: 20874049.

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Authors and Affiliations

  1. Key Laboratory of Functional Polymer Materials, The Ministry of Education, Institute of Polymer Chemistry, Nankai University, Tianjin, 300071, China

    Xiaoxu Wang, Hongfen Ji, Xu Zhang, Han Zhang & Xinlin Yang

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  1. Xiaoxu Wang
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  2. Hongfen Ji
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  3. Xu Zhang
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  4. Han Zhang
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  5. Xinlin Yang
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Correspondence to Xinlin Yang.

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Wang, X., Ji, H., Zhang, X. et al. Hollow polymer microspheres containing a gold nanocolloid core adsorbed on the inner surface as a catalytic microreactor. J Mater Sci 45, 3981–3989 (2010). https://doi.org/10.1007/s10853-010-4470-z

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  • DOI: https://doi.org/10.1007/s10853-010-4470-z

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