Afifi, Tarek H., and Alaa S. Abd-El-Aziz. “Novel Azo Disperse Dyes Derived from Aminothiophenes: Synthesis and UV-Visible Studies”. Dyes and Pigments, : Dyes and Pigments, vol. 70, no. 1, 2005, pp. 8-17, https://doi.org/10.1016/j.dyepig.2005.03.004.

Genre

  • Journal Article
Contributors
Author: Afifi, Tarek H.
Author: Abd-El-Aziz, Alaa S.
Date Issued
2005
Abstract

A number of red to violet thienyl-2-azo and thienyl-5-azo disperse dyes were prepared using Gewald's methodology. Structural characterization of these novel dyes was carried out using IR, NMR and mass spectroscopy. UV–visible studies of these azo dyes in a number of polar solvents showed a considerable difference in the λmax. The introduction of various substituents to these azo dyes as well as the polarity of solvents resulted in absorption in the visible region ranging from 461 to 555 nm.

Note

Department of Chemistry, The University of Winnipeg, Winnipeg, MB, Can.

Language

  • English

Subjects

  • Dyes (intermediates
  • prepn
  • Disperse dyes (azo
  • THIOPHENE
  • spectra
  • Substituent effects
  • prepn. and properties of disperse azo dyes from aminothiophenes)
  • in prepn. of disperse azo dyes from aminothiophenes)
  • azo
  • dye
  • UV and visible spectra (prepn. and properties of disperse azo dyes from aminothiophenes)
  • Azo dyes (disperse
  • Solvatochromism
Page range
8-17
Host Title
Dyes and Pigments
: Dyes and Pigments
Host Abbreviated Title
Dyes Pigm.
Volume
70
Issue
1
ISSN
0143-7208
DOI
https://doi.org/10.1016/j.dyepig.2005.03.004

Department