Electronic Structure and Doping Behavior of PANI‐NSA Nanofibers Investigated by Resonance Raman Spectroscopy
- 15 February 2006
- journal article
- research article
- Published by Wiley in Macromolecular Rapid Communications
- Vol. 27 (4) , 255-259
Abstract
Summary: Polyaniline nanofibers (from 93 to 220 nm) doped with β‐naphtalenesulfonic acid (PANI‐NSA) have been characterized. Nonhomogeneity in the thickness of fibers, as can be seen with scanning electron microscopy, is the reason for their instability under the HCl doping process. Resonance Raman spectral profiles of PANI‐NSA fibers suggest a lower protonation state than the emeraldine salt forms. Observation of Raman bands, which are a result of cross‐linking, confirms that one of the properties of the polymeric structure formed in micellar polymerization is the type of connection between chains. magnified imageKeywords
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