Spectroscopic and structural properties of dopant functionalized polyaniline prepared in a one-step procedure

Nacera Naar , David Djurado , Lamouri Saad , Adam Proń

Abstract

We have investigated the possibility of obtaining the conducting form of polyaniline (PANI) using a one-step preparation route. The polyaniline is chemically synthesized in presence of either 1,5-naphtalene disulfonic acid (NDSA) as a dopant or the couple 1,5-naphtalene disulfonic acid as a dopant and the chromotropic salt as a co-dopant (NDSA-Chromo). We present here the study of the spectroscopic, structural and electronic properties of the obtained salts of PANI. During this primary doping of PANI, only a single protonation by NDSA occurred. A co-protonation by HSO4 − appeared impossible in the presence of an organic disulfonic acid of strong acidity. This conclusion was confirmed not only by the elemental analysis but also by FTIR. The spectroscopic studies (UV-Visible-NIR) showed localization of the charge carriers (polaron) in the synthesized PANI. Using this strategy, we hoped that each NDSA molecule might protonate two PANI amine sites to form a hierarchically ordered supramolecular structure. The obtained compounds show only a limited degree of crystallinity which is however sufficient to propose a possible structural organization. The adjunction of the co-dopant does not modify the local structure of the conducting material and conductivities in the 0.1 S/cm range are obtained for samples with partial doping level. Further improvements in processing can be achieved in particular by using different solvents for obtaining films. In this respect, further progress is possible and this preparation path is worth to be explored in the future. Copyright © Taylor & Francis Group, LLC
Author Nacera Naar - [Ecole Militaire Polytechnique]
Nacera Naar,,
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, David Djurado - [CEA Grenoble]
David Djurado,,
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, Lamouri Saad - [Ecole Militaire Polytechnique]
Lamouri Saad,,
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, Adam Proń (FC / CPCT)
Adam Proń,,
- Chair Of Polymer Chemistry And Technology
Journal seriesJournal of Macromolecular Science: Part A - Pure and Applied Chemistry, ISSN 1060-1325, [1520-5738]
Issue year2013
Vol50
No6
Pages631-638
Publication size in sheets0.5
Keywords in EnglishPolyaniline, naphthalene disulfonic acid (NDSA), chromotropic salt, structural properties
ASJC Classification2505 Materials Chemistry; 2507 Polymers and Plastics; 1600 General Chemistry; 2503 Ceramics and Composites
DOIDOI:10.1080/10601325.2013.784556
URL http://www.tandfonline.com/doi/abs/10.1080/10601325.2013.784556#.UxSiwc7QRqw
Languageen angielski
File
Spectroscopic and Structural Properties of Dopant Functionalized Polyaniline Prepared in a One Step Procedure.pdf 840.15 KB
Score (nominal)20
Score sourcejournalList
ScoreMinisterial score = 20.0, 25-07-2020, ArticleFromJournal
Ministerial score (2013-2016) = 20.0, 25-07-2020, ArticleFromJournal
Publication indicators WoS Citations = 2; Scopus Citations = 2; GS Citations = 3.0; Scopus SNIP (Source Normalised Impact per Paper): 2013 = 0.429; WoS Impact Factor: 2013 = 0.74 (2) - 2013=0.882 (5)
Citation count*3 (2020-09-15)
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* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
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