Synthesis, characterisation, and applications of isoindigo/Pechmann dye heteroanalogue hybrid dyes on polyester fabric / Tarek Aysha in COLORATION TECHNOLOGY, Vol. 131, N° 4 (08/2015)  

[article]  inCOLORATION TECHNOLOGY > Vol. 131, N° 4 (08/2015) . - p. 333-341 Titre : Synthesis, characterisation, and applications of isoindigo/Pechmann dye heteroanalogue hybrid dyes on polyester fabric Type de document : texte imprimé Auteurs : Tarek Aysha, Auteur ; Mervat El-Sedik, Auteur ; Hamada M. Mashaly, Auteur ; Morsy A. El-Apasery, Auteur ; OldÅ™ich Machalický, Auteur ; Radim Hrdina, Auteur Année de publication : 2015 Article en page(s) : p. 333-341 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bains de teinture -- Analyse Caractérisation Colorants -- Synthèse Fibres polyesters Résistance au lavage Solidité de la couleur Teinture -- Fibres textiles synthétiques Index. décimale : 667.3 Teinture et impression des tissus Résumé : A series of new dyes based on the N-analogue of Pechmann hybrid dyes were prepared by the condensation of different 5-aryl derivatives of pyrrolinone ester (phenyl, 4-bromophenyl, thienyl, and biphenyl) with isatin. N-Alkylated derivatives were also prepared using bromoethyl acetate. Full 1H and 13C NMR assignment was performed. All prepared dyes were soluble in most organic solvents: N-alkylated derivatives had better solubility than non-alkylated derivatives. The UV-vis absorption spectra of the derivatives under study are quite similar and exhibit maxima in the 509–526 nm range. No E/Z photoisomerisation is observed. The dyeing process, dye exhaustion on polyester, and the fastness properties of the dyes were examined. Note de contenu : - EXPERIMENTAL : Materials and equipment - Synthesis and analytics - Dyeing process at 130°C and calculation of percentage dyebath exhaustion - Colour fastness to washing - Colour fastness to rubbing - Dry crocking test - Wet crocking test - Colour fastness to perspiration - Colour fastness to light - RESULTS AND DISCUSSION : Synthesis - NMR spectroscopy - UV-vis absorption spectra - Dyeing and percentage dyebath exhaustion DOI : 10.1111/cote.12161 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12161 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=24434 [article]

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