Synthesis of a novel fluorescent coloured copolymer based on 4-butylthio-1,8-naphthalimide / Bahareh Safabakhsh in COLORATION TECHNOLOGY, Vol. 128, N° 3 (2012)

[article]  inCOLORATION TECHNOLOGY > Vol. 128, N° 3 (2012) . - p. 218-222 Titre : Synthesis of a novel fluorescent coloured copolymer based on 4-butylthio-1,8-naphthalimide Type de document : texte imprimé Auteurs : Bahareh Safabakhsh, Auteur ; Alireza Khosravi, Auteur ; Kamaladin Gharanjig, Auteur ; Elaheh Kowsari, Auteur ; Manouchehr Khorassani, Auteur ; Sina Tafaghodi, Auteur Année de publication : 2012 Article en page(s) : p. 218-222 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Colorants -- Synthèse Copolymères -- Synthèse Fluorescence Fluoropolymères Méthacrylate de méthyle Solvatochromisme Index. décimale : 667.3 Teinture et impression des tissus Résumé : A novel fluorescent coloured copolymer based on naphthalimide was prepared. Acenaphthene was brominated and oxidised to prepare 4-bromo-1,8-naphthalic anhydride and further reacted with butanethiol, 2-aminoethanol and acryloyl chloride, in order to obtain a new polymerisable fluorescent dye. The synthesised dyes were characterised by differential scanning calorimetry, absorption spectroscopy (Fourier Transform–infrared, proton and carbon nuclear magnetic resonance, ultraviolet–visible spectroscopy) and fluorimetry. Molar extinction coefficients and wavelength maxima were obtained by examining the dye solution in ethanol. The solvatochromic effects of the prepared dyes have also been investigated. Finally, the dye was copolymerised with methyl methacrylate and an intrinsically coloured copolymer was obtained. The photophysical characteristics of the obtained copolymer have also been considered. It is assumed that 99% of the copolymerised dye is chemically bonded to polymer chains. The fluorescent characteristics of the copolymer in the solid state were determined by fluorometer and it was found that it has relatively high fluorescent intensity. The physical properties of the synthesised copolymer have been evaluated by differential scanning calorimetry and gel permeation chromatography. Note de contenu : - EXPERIMENTAL : Materials - Instrumentation - Synthesis of intermediates, monomer and copolymer - RESULTS AND DISCUSSION : Synthesis of polymerisable dye - Spectrophotometric properties of dyes - Copolymerisation of the synthesised dye with MMA DOI : 10.1111/j.1478-4408.2012.00366.x Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15124 [article]

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