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Preparation and characterization of poly[acrylamide-co-3-(acryloylamino)propyldodecyldimethylammonium bromide]/polyoxometalate composite microspheres

Authors

  • Hong Li,

    1. College of Environment and Chemical Engineering, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, People's Republic of China
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  • Xin'ai Cui,

    1. School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, People's Republic of China
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  • Shukun Shen,

    1. School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, People's Republic of China
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  • Daodao Hu

    Corresponding author
    1. School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, People's Republic of China
    • School of Chemistry and Materials Science, ShaanxiNormal University, Xi'an, Shaanxi 710062, People's Republic of China
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Abstract

Surfmer [3-(acryloylamino)propyl]dodecyldimethyl ammonium bromide (APDDAB) was synthesized and characterized. On the basis of the reverse emulsion polymerization technique, poly[acrylamide-co-3-(acryloylamino)propyldodecyldimethylammonium bromide] [P(AM-co-APDDAB)] copolymer microgels were obtained with the copolymerization of acrylamide and APDDAB. The P(AM-co-APDDAB)/polyoxotungstates composite microspheres were prepared with the ion-exchange reaction of the P(AM-co-APDDAB) microgels with phosphotungstic acid (H3PW12O40). The morphologies and components of the composite microspheres were characterized by scanning electron microscopy, energy-dispersive X-ray spectroscopy, thermogravimetric analysis, and Fourier transform infrared spectroscopy. The results indicate that the P(AM-co-APDDAB)/PW12O40 composite microspheres all had a core–shell structure. For the composite microspheres, the hydrogel P(AM-co-APDDAB) was dominantly located in the core, and the complexes of PW12O403− with APDDAB were mainly located in the surface; these features made the composite microspheres amphiphilic and provided for potential catalysis in a two-phase reaction. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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