Tailoring Intrinsic Properties of Polyaniline by Functionalization with Phosphonic Groups
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Título: | Tailoring Intrinsic Properties of Polyaniline by Functionalization with Phosphonic Groups |
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Autor/es: | Martínez-Sánchez, Beatriz | Cazorla-Amorós, Diego | Morallon, Emilia |
Grupo/s de investigación o GITE: | Electrocatálisis y Electroquímica de Polímeros | Materiales Carbonosos y Medio Ambiente |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Departamento de Química Inorgánica | Universidad de Alicante. Instituto Universitario de Materiales |
Palabras clave: | Phosphonated polyaniline | Self-doping | Phosphonic acid | Copolymerization |
Área/s de conocimiento: | Química Física | Química Inorgánica |
Fecha de publicación: | 27-nov-2020 |
Editor: | MDPI |
Cita bibliográfica: | Martínez-Sánchez B, Cazorla-Amorós D, Morallón E. Tailoring Intrinsic Properties of Polyaniline by Functionalization with Phosphonic Groups. Polymers. 2020; 12(12):2820. https://doi.org/10.3390/polym12122820 |
Resumen: | Phosphonated polyanilines were synthesized by copolymerization of aniline (ANI) with both 2- and 4-aminophenylphosphonic acids (APPA). The material composition and the final properties of the copolymers can be easily tailored by controlling the monomers ANI/APPA molar feed ratio. An important influence on the reactivity of monomers has been found with the substituent position in the ring, leading to differences in the properties and size of blocks of each monomer in the polymer. As expected, while 2APPA shows more similarities to ANI, 4APPA is much less reactive. Phosphorus loading of ~5 at% was achieved in the poly(aniline-co-2-aminophenylphosphonic acid) (PANI2APPA) with a 50/50 molar feed ratio. All the resulting copolymers were characterized by different techniques. Experimental results and density functional theory (DFT) computational calculations suggest that the presence of phosphonic groups in the polymeric chain gives rise to inter- and intra-chain interactions, as well as important steric effects, which induce a slight twist in the substituted PANI structure. Therefore, the physicochemical, electrical, and electrochemical properties are modified and can be suitably controlled. |
Patrocinador/es: | This research was funded by Ministerio de Ciencia e Innovación (Grant number: PID2019-105923RB-100) and Ministerio de Ciencia, Innovación y Universidades (grant number: FPU18/05127). And the APC was funded by Universidad de Alicante. |
URI: | http://hdl.handle.net/10045/110667 |
ISSN: | 2073-4360 |
DOI: | 10.3390/polym12122820 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/polym12122820 |
Aparece en las colecciones: | INV - GEPE - Artículos de Revistas INV - MCMA - Artículos de Revistas |
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