• Medientyp: E-Artikel
  • Titel: Microwave synthesis, photophysical properties of novel fluorescent iminocoumarins and their application in textile printing
  • Beteiligte: Elgemeie, G.H.; Ahmed, K.A.; ahmed, E.A.; helal, M.H.; Masoud, D.M.
  • Erschienen: Emerald, 2015
  • Erschienen in: Pigment & Resin Technology
  • Sprache: Englisch
  • DOI: 10.1108/prt-04-2014-0029
  • ISSN: 0369-9420
  • Schlagwörter: Materials Chemistry ; Surfaces, Coatings and Films
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  • Beschreibung: <jats:sec> <jats:title content-type="abstract-heading">Purpose</jats:title> <jats:p> – This paper aims to synthesise coumarine flourescent dyes from a cheap material in a very short time with a very high yield, and by using a clean green chemistry. </jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-heading">Design/methodology/approach</jats:title> <jats:p> – Efficient microwave synthesis for some novel iminocoumarins starts from the reaction of p-phenyl-enediamine and ethyl cyanoacetate followed by cyclocondensation with salicylaldehyde derivatives. </jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-heading">Findings</jats:title> <jats:p> – The synthesized iminocoumarine compounds were characterized by spectroscopic methods. Absorption and fluorescence spectra of the compounds were also recorded. All compounds were fluorescent in 1,4-dioxane solution, they all emitted blue light (440-460 nm). The printing properties were studied, and their applications on printing polyester and polyamide fabrics were studied by silk screen printing. </jats:p> </jats:sec> <jats:sec> <jats:title content-type="abstract-heading">Originality/value</jats:title> <jats:p> – The authors designed efficient microwavel synthesis for some novel iminocoumarine derivatives; The novel procedure features short-reaction time, moderate yields and simple workup; All compounds were fluorescent in 1,4-dioxane solution, and they all emitted blue light; The authors studied their application in printing polyester and polyamide fabrics.</jats:p> </jats:sec>