Premium
Synthesis and Characterization of Novel Monoazo Naphthalimide Disperse Dyes Containing Carboxylic Acid Group with High Heat Fastness Properties
Author(s) -
Kiakhani Moosa Sadeghi,
Gharanjig Kamaladin,
Arami Mokhtar,
Mokhtari Javad,
Mahmoodi Niyaz Mohammad
Publication year - 2008
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200800194
Subject(s) - chemistry , solvatochromism , molar absorptivity , chloroform , acid dye , proton nmr , polyester , acetone , absorption (acoustics) , carbon 13 nmr , fourier transform infrared spectroscopy , nuclear chemistry , polymer chemistry , organic chemistry , chemical engineering , solvent , dyeing , materials science , physics , optics , composite material , engineering
A group of novel monoazo disperse dyes containing carboxylic acid‐1,8‐naphthalimide group has been synthesized. All intermediates and dyes were purified by recrystalization and the column chromatography method. The purified products were characterized by 1 H NMR, 13 C NMR, FTIR, DSC, UV‐VIS and Elemental Analysis. Spectrophotometric investigations of the synthesized dyes in different solvents were carried out in order to obtain their absorption maxima, molar extinction coefficients and solvatochromic effects. The absorption maxima of the synthesized dyes in acetone varied (513‐549 nm) and the molar extinction coefficient was (17405‐38939 l/mol cm). By changing the media from chloroform to DMF, the solvatochromism effect for all dyes increased. Dispersion of the synthesized dyes was prepared in water containing dispersing agent and applied to polyester fabrics. The dyed fabrics showed that all of the synthesized dyes were suitable for coloring polyester fibers, producing deep red to bluish red with very good fastness properties.