Saidani, N.; Morallón, E.; Huerta, F.; Besbes-Hentati, S.; Montilla-Jiménez, F. (2020). Electrochemical synthesis of fluorinated polyanilines. Electrochimica Acta. 348:1-8. https://doi.org/10.1016/j.electacta.2020.136329
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/152800
Title:
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Electrochemical synthesis of fluorinated polyanilines
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Author:
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Saidani, N.
Morallón, Emilia
Huerta, Francisco
Besbes-Hentati, Salma
Montilla-Jiménez, Francisco
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UPV Unit:
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Universitat Politècnica de València. Departamento de Ingeniería Textil y Papelera - Departament d'Enginyeria Tèxtil i Paperera
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Issued date:
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Abstract:
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[EN] A set of fluoro-functionalized polyaniline conducting polymers was synthesized by cyclic scanning of the potential from acidic solutions containing aniline and 2-fluoroaniline monomers. The monomer feed ratio was ...[+]
[EN] A set of fluoro-functionalized polyaniline conducting polymers was synthesized by cyclic scanning of the potential from acidic solutions containing aniline and 2-fluoroaniline monomers. The monomer feed ratio was varied to modulate the composition of the synthesized materials. The fluorination level of the copolymers was quantified from X-ray photoelectron spectroscopy. The upper inversion potential of the cyclic scans was proved as a suitable tool to tune the fluorination level, as the reactivity of the growing chains depends strongly on that experimental parameter. We found that terminal fluorinated anilines present a reactivity for homocoupling 5 times lower than for heterocoupling, independently of the limiting potential. Conversely, aniline terminal groups present a reactivity strongly dependent on the limiting potential, favoring the heterocoupling reactions at high inversion potentials. The maximum fluorination level of polyaniline rings achieved is about 75%. (C) 2020 Elsevier Ltd. All rights reserved.
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Subjects:
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Conducting polymers
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Electrochemical copolymerization
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Fluoroaniline
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Monomer reactivity
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Copyrigths:
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Cerrado |
Source:
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Electrochimica Acta. (issn:
0013-4686
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DOI:
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10.1016/j.electacta.2020.136329
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Publisher:
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Elsevier
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Publisher version:
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https://doi.org/10.1016/j.electacta.2020.136329
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Project ID:
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Generalitat Valenciana/PROMETEO/2018/087
MINECO/MAT2016-76595-R
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Thanks:
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The authors wish to thank Generalitat Valenciana (PROMETEO/2018/087) for financial support. Nesrine Saidani would like to thank the Tunisian Ministry of Higher Education and Research for funding her stay at the University ...[+]
The authors wish to thank Generalitat Valenciana (PROMETEO/2018/087) for financial support. Nesrine Saidani would like to thank the Tunisian Ministry of Higher Education and Research for funding her stay at the University of Alicante.
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Type:
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Artículo
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