In situ fabrication of polyaniline‐silver nanocomposites using soft template of sodium alginate |
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| Authors: | Biplab Bhowmick Dibyendu Mondal Dipanwita Maity Md Masud Rahaman Mollick Mrinal Kanti Bain Nirmal Kumar Bera Dipak Rana Sanatan Chattopadhyay Dipankar Chattopadhyay |
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| Affiliation: | 1. Department of Polymer Science and Technology, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India;2. Department of Chemical and Biological Engineering, Industrial Membrane Research Institute, University of Ottawa, 161 Louis Pasteur St., Ottawa, Ontario, K1N 6N5, Canada;3. Department of Electronic Science, University of Calcutta, 92 A.P.C. Road, Kolkata 700009, India |
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| Abstract: | Polyaniline (PANI)‐Ag nanocomposites were synthesized by in situ chemical polymerization approach using ammonium persulfate and silver nitrate as oxidant. Characterizations of nanocomposites were done by ultraviolet–visible ( UV–vis), Fourier transform infrared (FTIR), X‐ray diffraction (XRD), scanning electron microscopy, and transmission electron microscopy (TEM). UV–vis, XRD and FTIR analysis established the formation of PANI/Ag nanocomposites and face‐centered‐cubic phase of silver. PANInanofibers were of average diameter ～ 30 nm and several micrometers in length. Morphological analysis showed that the spherical‐shaped silver nanoparticles decorate the surface of PANI nanofibers. Silver nanoparticles of average diameter ～ 5–10 nm were observed on the TEM images for the PANI‐Ag nanocomposites. Such type of PANI‐Ag nanocomposites can be used as bistable switches as well as memory devices. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci., 2013 |
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| Keywords: | composites fibers conducting polymers |
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