Curing kinetic of epoxy oligomers in the presence of polyaniline / V. Kurbatov in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 207, N° 4636 (11/2017)  

[article]  inPOLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 207, N° 4636 (11/2017) . - p. 36-38 Titre : Curing kinetic of epoxy oligomers in the presence of polyaniline Type de document : texte imprimé Auteurs : V. Kurbatov, Auteur ; Eugene A. Indeikin, Auteur Année de publication : 2017 Article en page(s) : p. 36-38 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cinétique chimique Eméraldine Epoxydes Oligomères Polyaniline Polymérisation Index. décimale : 667.9 Revêtements et enduits Résumé : The influence of polyaniline forms on the rate and depth of curing of epoxy oligomers was determined. It is established that the use of the emeraldine form of polyaniline as a modifying agent of an amine hardener leads to the acceleration of the curing process, unlike the pernigraniline form. Studying the changes of the electronic absorption spectrum of the modified amine hardener shows the transition of the emeraldine form of polyaniline in the pernigraniline form over time. Note de contenu : - Fig. 1. The reversible inversion of different forms of PANi - Fig. 2. Absorption spectra MPMDA, PANi, MPMDA modified by PANI in the n-methylpyrrolidum-2-on - Fig. 3. The formation of molecular excitons with charger transfer in the quinoid ring of two adjacent benzene rings - Fig. 4. Changes in the absorption spectrum of the MPMDA modified by PANi over time. Dwell time PANi modified MPMDA 1hr, 10 days, 25 days, 90 days - Fig. 5. The absorption spectra of MPMDA modified by PANi after 90 days of exposure, and after introduction of the reducing agent in it - TICI3 - Fig. 6. Initial cure rate - dZ/dt and the dynamic viscosity - vs the content of the emeraldine and pernigraniline form by PANi in the epoxy composition En ligne : https://drive.google.com/file/d/1mGgvpvJgrctKqLFtYQyyl80d0cbbbJtt/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29467 [article]

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Electrical properties of PANI/chalcogenide junctions doped with ionic liquids anions / Abdelkader Benabdellah in TENSIDE, SURFACTANTS, DETERGENTS, Vol. 49, N° 3 (04-05/2012)

[article]  inTENSIDE, SURFACTANTS, DETERGENTS > Vol. 49, N° 3 (04-05/2012) . - p. 241-246 Titre : Electrical properties of PANI/chalcogenide junctions doped with ionic liquids anions Type de document : texte imprimé Auteurs : Abdelkader Benabdellah, Auteur ; El-Habib Belarbi, Auteur ; Hocine Ilikti, Auteur ; Mustapha Hatti, Auteur ; Bekhaled Fettouhi, Auteur Année de publication : 2012 Article en page(s) : p. 241-246 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Anions Chalcogénures Conducteurs organiques Eméraldine Liquides ioniques Polyaniline Index. décimale : 668.1 Agents tensioactifs : savons, détergents Résumé : Ionic liquids like 1-butyl-3-methylimidazolium chloride ([BMIM] Cl, 1-butyl-3-methyl-imidazolium hexafluorophosphate [BMIM] PF6, 1-butyl-3-methyl-imidazolium tetrafluorobrate [BMIM] BF4, 1-butyl-3-methyl-imidazolium bis (trifluoromethylsulfonyl) imide [BMIM] NTf2) were used as doping elements in polyaniline. Pure polyaniline (EB) and polyaniline doped with different anions of ionic liquids (ESs) were chemically synthesized using ammonium peroxydisulphate (APS) and ionic liquids as oxidants. Junctions have been prepared by evaporating chalcogenide materials (ZnSe, CdSe) on conducting polyaniline (EB & ESs) pellets using a vacuum evaporation technique. I-V characteristics of junctions have been studied at room temperature using the Keithley electrometer 6517A. I-V measurements show the rectification effect. A junction of ES [BF???] anion may be preferred over the other junctions due to its low ideality factor and maximum rectification ratio. Note de contenu : - EXPERIMENTAL : Reagents and instruments - Preparation of the ionic liquids - Preparation of emeraldine salts by ionic liquide - Electrical measurements thin films of chalcogenide materials - RESULTS : Raman spectra of PANI films - I-V characteristics between PANI (EB & ESs) heterojunctions and chalogenide material (ZnSe, CdSe) Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=14913 [article]

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