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

1Laboratoire de Chimie des Polymères, Université Ahmed Ben Bella d’Oran1, BP 1524, El-Mnaouer, 31000 Oran, Algeria

2Faculté des Sciences de la Matière, Université Ibn Khaldoun de Tiaret, BP P78, Zaâroura, 14000 Tiaret, Algeria

3Laboratoire de Chimie des Matériaux, Université Ahmed Ben Bella d’Oran1, BP 1524, El-Mnaouer, 31000 Oran, Algeria

4 Centre Universitaire Ahmed Zabana de Relizane, BP 48000, Bourmadia, Relizane, Algeria

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Received: 17 Dec 2018; Revised: 10 Feb 2019; Accepted: 15 Feb 2019; Available online: 30 Apr 2019; Published: 1 Aug 2019.
Editor(s): Istadi Istadi
Open Access Copyright (c) 2019 by Authors, Published by BCREC Group under

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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, 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). 

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

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