New poly(o-phenylenediamine)/modified-clay nanocomposites: A study on spectral, thermal, morphological and electrochemical characteristics

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Title: New poly(o-phenylenediamine)/modified-clay nanocomposites: A study on spectral, thermal, morphological and electrochemical characteristics
Authors: Khelifa, Ikram | Belmokhtar, Abdelkader | Berenguer Betrián, Raúl | Benyoucef, Abdelghani | Morallon, Emilia
Research Group/s: Electrocatálisis y Electroquímica de Polímeros
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Materiales
Keywords: Conjugated polymer | Poly(orthophenylenediamine) | Modifed-clay | Electrochemical properties
Knowledge Area: Química Física
Issue Date: 15-Feb-2019
Publisher: Elsevier
Citation: Journal of Molecular Structure. 2019, 1178: 327-332. doi:10.1016/j.molstruc.2018.10.054
Abstract: This work describes the synthesis and characterization of new poly(o-phenylenediamine (PoPD)/modified-clay nanocomposite materials. For the synthesis, the raw clay (named as Mag) used in this study was from Maghnia (west Algeria), (Mag) clay was ion-exchanged with cobalt(II) sulfate hydrate and copper sulfate. The modified-clays were then dispersed in a oPD monomer-containing acidic solution to carry out in-situ intercalative oxidative polymerization by ammonium persulfate. XRF and XRD characterization reveal the success of ion-exchange to form highly intercalated Mag-Co and Mag-Cu clays. After polymerization, the disappearance of the interlayer-spacing diffraction peak for the PoPD-Mag-Cu and PoPD-Mag-Co nanocomposites points out fully exfoliation of the clay structure. The formation of intercalated PoPD into modified-clay nanocomposites was confirmed by XRD, TEM, TG analysis, FTIR spectroscopy and UV–vis studies. The nanocomposites show optical properties and the redox processes observed by cyclic voltammetry indicate that the reported polymerization into modified-clays leads to electroactive hybrid materials. All these properties make these polymer/clay nanocomposites attractive materials for multiple applications.
Sponsor: The authors wish to acknowledge the Directorate General for Scientific Research and Technological Development Algeria. Ministerio de Economía y Competitividad and FEDER is acknowledged for financial support (MAT2016-76595-R).
URI: http://hdl.handle.net/10045/83628
ISSN: 0022-2860 (Print) | 1872-8014 (Online)
DOI: 10.1016/j.molstruc.2018.10.054
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2018 Elsevier B.V.
Peer Review: si
Publisher version: https://doi.org/10.1016/j.molstruc.2018.10.054
Appears in Collections:INV - GEPE - Artículos de Revistas

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