Highly Conductive and Soluble Polymer Synthesized by Copolymerization of Thiophene with Para-Methoxybenzaldehyde Using Clay Catalyst

*Djamal Eddine Kherroub orcid  -  Laboratoire de Chimie des Polymères, Université Ahmed Ben Bella d’Oran1, Algeria
Larbi Bouhadjar  -  Faculté des Sciences de la Matière, Université Ibn Khaldoun de Tiaret, Algeria
Bouhadjar Boukoussa  -  Laboratoire de Chimie des Matériaux, Université Ahmed Ben Bella d’Oran1, Algeria
Abdelkader Rahmouni  -  Laboratoire de Chimie des Polymères, Université Ahmed Ben Bella d’Oran1, Algeria
Khadidja Dahmani  -  Centre Universitaire Ahmed Zabana de Relizane, Algeria
Mohammed Belbachir  -  Laboratoire de Chimie des Polymères, Université Ahmed Ben Bella d’Oran1, Algeria
Received: 17 Dec 2018; Revised: 10 Feb 2019; Accepted: 15 Feb 2019; Published: 1 Aug 2019; Available online: 30 Apr 2019.
Open Access Copyright (c) 2019 Bulletin of Chemical Reaction Engineering & Catalysis
License URL: http://creativecommons.org/licenses/by-sa/4.0

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This present research focuses on the synthesis of a new conducting polymer based on the copolymerization of thiophene with para-methoxybenzaldehyde, using a clay as an ecologic catalyst named Maghnite-H+. The catalysis of the reaction by Maghnite-H+ can confer it important benefits, such as the green environment aspect. The reaction was carried out in dichloromethane as a solvent. The new copolymer obtained is a poly (heteroarylene methines) small bandgap polymers precursor. It can be considered as a useful model system for examining the impacts of π-conjugation length on the electronic properties of this type of conjugated polymers. The measurements of the electrical conductivity gave a value of order of 0.0120 W.cm-1, allowing its use in various important applications. The characteristics of the molecular structure and the thermal behavior of the conducting polymer obtained are also discussed using different methods of analysis, such as: proton nuclear magnetic resonance (NMR), Fourier transform infrared (FTIR) spectroscopy, ultraviolet/visible spectroscopy, and thermal gravimetric analysis (TGA). Copyright © 2019 BCREC Group. All rights reserved


Keywords: Clay; Maghnite-H+; Poly [(thiophene-2,5-diyl)-co-(para-methoxylbenzylidene)]; Band gap; electrical conductivity

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