Solid-state NMR and FTIR investigations of standard and nanotubular polyanilines |
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| Authors: | Zoran D Zujovic |
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| Institution: | 1.School of Chemical Sciences,The University of Auckland,Auckland,New Zealand;2.Centre for NMR and Polymer Electronic Research Centre, School of Chemical Sciences,The University of Auckland,Auckland,New Zealand |
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| Abstract: | The standard emeraldine base (EB) form of polyaniline and the product obtained by the oxidative polymerization of aniline using a pH-stat method at a constant pH of 2.5 are investigated. The morphology of the pH-stat product was examined using scanning electron microscopy and transmission electron microscopy. The prevalence of self-assembled nanotubes in the pH-stat product is confirmed. The structural differences between the EB and pH-stat products are revealed by FTIR and solid-state NMR experiments. On the basis of these investigations, the presence and the role of the oligomeric material in the formation of nanotubes is confirmed. |
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