Fabrication and Characterization of Poly (aniline-co-4-bromoaniline)/Сlay Nanocomposite
La revue : Polymer Science, Series B
Domaine : Chimie
Mots Clés : Copolymer synthesis, solubility, poly(pyrrole-co-2-nitrocinnamaldehyde), pyrrole, 2-nitrocinnamaldehyde
Auteur : N. E-h. Bouabida, A. Hachemaoui, A. Yahiaoui, H. Gherras, A. Belfedal, A. Dehbi, , A. H I. Mourad
Issn : 1560-0904 Eissn : vol : 62, Num : 02, pp :
Date de publication : 2020-11-30
Résume : Poly(aniline-co-4-bromoaniline) nanocomposites were prepared via in situ polymerization in different
molar ratio in the presence of Cu2+−monmorillonite. The X-ray diffraction confirmed that the basal
space of Cu2+−montmorillonite increased after the organophilization. Poly(aniline-co-4-bromoaniline)/
Cu2+−monmorillonite nanocomposites were prepared by intercalating of aniline and 4-bromoaniline
with treated organically layers of Cu2+−monmorillonite following by polymerization initiated by ammonium
peroxdisulfate. The nanocomposites were characterized by FTIR, XRD, and UV–Vis spectroscopy.
Synthesis and characterization of poly(pyrrole-co-2-nitrocinnamaldehyde) (PPNC), a new copolymer for solar cells applications
La revue : Polymers and Polymer Composites
Domaine : Chimie
Mots Clés : Copolymer synthesis, solubility, poly(pyrrole-co-2-nitrocinnamaldehyde), pyrrole, 2-nitrocinnamaldehyde
Auteur : H. Gherras, A. Yahiaoui, A. Hachemaoui, A. Belfedal, A. Dehbi, A. Zeinert
Issn : Eissn : vol : , Num : , pp :
Date de publication : 2019-08-08
Résume : The use of conductive polymers as a substitute for metallic conductors and semiconductors has attracted much attention
in the literature. In particular, aromatic heterocyclic polymers constitute an important class since they possess chemical
and electrical stability in both the oxidized (doped) and neutral (undoped) state. A series of poly(pyrrole-co-2-nitrocinnamaldehyde)
were obtained via the condensation of pyrrole and 2-nitrocinnamaldehyde in chloroform using acid
exchanged montmorillonite clay called maghnite-Hþ as an efficient catalyst. The conjugated copolymer was characterized
using proton nuclear magnetic resonance, ultraviolet–visible spectroscopy, Fourier transform infrared spectroscopy, and
scanning electron microscopy.
Synthesis and characterization of poly (2,5-diyl pyrrole-2-pyrrolyl methine) semiconductor copolymer
La revue : Journal of Semiconductors
Domaine : Chimie
Mots Clés : proposed technique; Maghnite-H+ catalyst; conducting PPPM copolymer; pyrrole; pyrrole-2-carboxaldehyde
Auteur : H. Gherras, A. Yahiaoui, A. Hachemaoui, A. Belfedal, A. Dehbi, A-H I. Mourad;
Issn : Eissn : vol : 39, Num : 09, pp :
Date de publication : 2018-09-28
Résume : In the current research, the proposed technique to synthesise poly {(2,5-diyl pyrrole) (2-pyrrolyl
methine)} (PPPM) copolymer by condensation of pyrrole and pyrrole-2- carboxaldehyde monomers catalyzed by
Maghnite-H+ is introduced. The protons are exchanged with Maghnite-H+, which is available in the form of a
montmorillonite silicate clay sheet. The effect of several parameters such as time and temperature of copolymerization,
[pyrrole]/[pyrrole-2-carboxaldehyde] molar ratio, amount of Maghnite-H+, and solvent on the produced poly
(2,5-diyl pyrrole-2- pyrrolyl methine) semiconductor copolymer material (yield%) was investigated.
Synthesis of new nitrobenzylidene derivatives and pyrrole-based copolymers for dye-sensitized solar cells: effect of substituent on opto-electrical properties of dip-coated thin films
La revue : Surface Review and Letters
Domaine : Chimie
Mots Clés : Auteur : A. Remil, Y. Mouchaal , A. B. Reguig, A. L. Toumi, h. Gherrass, A. Hachemaoui, A. Yahiaoui , A. Khelil
Issn : Eissn : vol : , Num : , pp :
Date de publication : 2017-11-28
Résume : The mastery of the optoelectronic properties of conjugated copolymers by substituting their radicals
is a promising way for increasing the light absorption and charge career transport in the organic
devices active layer. In this paper, we present the chemical synthesis of four di®erent conjugated
benzaldehyde derivatives and pyrrole-based copolymers (P–P:B) followed by their conception in
thin ¯lms on glass substrates by dip coating root from a solution in dichloromethane.
3. Morphological and physicochemical properties of dip-coated poly (2,5-diyl pyrrole) [4-nitrobenzylidene] (PPNB) thin films: towards photovoltaic applications
La revue : Eur. Phys. J. Appl. Phys
Domaine : Chimie
Mots Clés : Auteur : Y. Mouchaal, H. Gherras, A. B. Reguig, A. Hachemaoui, A. Yahiaoui, M. Makha, A.Khelil, J-C. Bernede
Issn : Eissn : vol : , Num : , pp :
Date de publication : 2015-02-25
Résume : A new material: conjugated poly {(2,5-diyl pyrrole) [4-nitrobenzylid`ene]}, that we called
(PPNB), has been synthesized and characterized. The cyclic voltammetry has been used in order to estimate
first oxidation (Ep) and reduction (En) potentials of our polymer. These values have been assigned,
respectively, to the position of the highest occupied molecular orbital (HOMO) and the lowest unoccupied
molecular orbital (LUMO) and determination of the energy band gap which have been estimated to be 6.16,
3.89 and 2.27 eV respectively.
Poly [(pyrrole-2, 5-diyl) co (4-Nitro benzylidene)]: A new synthetic approach and electronic properties
La revue : MaterialsScienceandEngineering
Domaine : Chimie
Mots Clés : Auteur : H. Gherras, A. Hachemaoui, A. Yahiaoui, M. Belbachir , A. Belfedal
Issn : Eissn : vol : , Num : , pp :
Date de publication : 0000-00-00
Résume : A new poly (heteroary1ene methylene) containing one to four -pyrrole rings alternating with an sp3-carbon atom in the main chain were synthesized and characterized. The synthesized poly [(pyrrole-2, 5-diyl)-co-(4-nitrobenzylidene)] was found to be highly dehydrogenated, thus resulting in black materials with conjugated segments larger than a single pyrrole ring. The conjugated polymers containing alternating aromatic and quinoid heteroarylene moieties in the main chain were prepared by polycondensation of 4-nitrobenzaldehyde and pyrrole catalysed by Maghnite-H+.
Chemical synthesis and characterization of a new soluble conducting polymer
La revue : Synthetic Metals
Domaine : Chimie
Mots Clés : Auteur : H. Gherras, A. Hachemaoui, A. Yahiaoui, A. Benyoucef, A.Belfedal, M.Belbachir
Issn : 03796779 Eissn : vol : , Num : , pp :
