Abstract

Mahendrasinh Raj^1* and Lataataata Raj²

The present work aims application of modified epoxy resin as a coupling agent in polymeric azo dyes. Chemical modification of epoxy resin by polycondensation reaction of epoxy resin with two different phenols namely phenol and 2- hydroxyl napthelene in presence of basic medium. The resulting oligomers were characterized by elemental analysis, spectral studies (FTIR), number average molecular weight (Mn) and thermal stability by thermogravimetric analysis (TGA). Each of this resin was used as a coupling agent in the syntheses of polymeric azo dyes in presence of various aromatic amines viz. aniline, p-Cl–Aniline, p-NO2–Aniline, p-Amino–phenol, p–Toluidine, & p-Ansidine. The synthesized polymeric azo dyes were characterize by their physical properties, FTIR spectral studies and visible spectral studies view to explore their chemical structure and dyeing behavior on different fabric.

Azo dye; modified epoxy resin; oligomer; polymeric azo dye; coupling agent

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