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

被引：31
作者：
Khelifa, I. [1 ]
Belmokhtar, A. [1 ]
Berenguer, R. [2 ,3 ]
Benyoucef, A. [1 ,4 ]
Morallon, E. [2 ,3 ]
机构：
[1] Univ Mustapha Stambouli Mascara, Lab Mat Applicat & Environm, BP 763, Mascara 29000, Algeria
[2] Univ Alicante, Dept Quim Fis, Apartado 99, E-03080 Alicante, Spain
[3] Univ Alicante, Inst Univ Mat, Apartado 99, E-03080 Alicante, Spain
[4] Univ Mustapha Stambouli Mascara, Lab Genie Proc & Chim Solut, BP 763, Mascara 29000, Algeria
来源：
JOURNAL OF MOLECULAR STRUCTURE | 2019年 / 1178卷 / 327-332期
关键词：
Conjugated polymer; Poly(orthophenylenediamine); Modifed-clay; Electrochemical properties; CORROSION PROTECTION; CLAY NANOCOMPOSITES; POLYANILINE; ACID; POLYMERIZATION; INTERCALATION; SPECTROSCOPY; ANILINE; VOLTAMMETRY; COPOLYMER;
D O I：
10.1016/j.molstruc.2018.10.054
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
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, FFIR 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. (C) 2018 Elsevier B.V. All rights reserved.
引用
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页码：327 / 332
页数：6
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