Synthesis and characterization of novel silver/L‐phenylalanine‐based optically active polyacrylate nanocomposite |
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| Authors: | Shadpour Mallakpour Zahra Rafiee Ali Ashrafi |
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| Affiliation: | 1. Organic Polymer Chemistry Research Laboratory, Department of Chemistry, Isfahan University of Technology, Isfahan 84156‐83111, I. R. Iran;2. Nanotechnology and Advanced Materials Institute, Isfahan University of Technology, Isfahan 84156‐83111, I. R. Iran;3. Department of Chemistry, Yasouj University, Yasouj 75914‐353, I. R. Iran;4. Materials Department, Shahid Chamran University, Ahvaz 61355, I. R. Iran |
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| Abstract: | Novel bioactive and optically active poly(N‐acryloyl‐L ‐phenylalanine) (PAPA) was synthesized by atom transfer radical polymerization. PAPA‐silver (Ag) nanocomposites have been successfully prepared via in situ reducing Ag+ ions anchored in the polymer chain using hydrazine hydrate as reducing agent in an aqueous medium. By controlling of the amount of Ag+ ions introduced, we have produced an organic/inorganic nanocomposite containing Ag nanoparticles with well controlled size. Nanocomposites were characterized by X‐ray diffraction (XRD), UV–Vis spectrophotometry, transmission electron microscopy, and Fourier transform infrared. XRD pattern showed presence of Ag nanoparticles. The PAPA/Ag nanocomposites with 1 : 10 silver nitrate (AgNO3) : PAPA ratio revealed the presence of well‐dispersed Ag nanoparticles in the polymer matrix. All of these Ag nanoparticles formed are spherical and more than 80% of them are in the range of 15–25 nm. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011 |
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| Keywords: | silver nanoparticles optically active polymers poly(N‐acryloyl‐L‐phenylalanine) reducing agent atom transfer radical polymerization |
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