Novel azo disperse dyes derived from aminothiophenes: Synthesis and UV-visible studies

被引：56

作者：

Abd-El-Aziz, AS ^{[1
]}

Afifi, TH ^{[1
]}

机构：

[1] Univ Winnipeg, Dept Chem, Winnipeg, MB R3B 2E9, Canada

来源：

DYES AND PIGMENTS | 2006年 / 70卷 / 01期

基金：

加拿大自然科学与工程研究理事会;

关键词：

aminothiophenes; thienyl-2-azo dyes; thienyl-5-azo dyes; absorption spectra;

D O I：

10.1016/j.dyepig.2005.03.004

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

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 lambda(max). 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. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：8 / 17

页数：10

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