Synthesis, Characterization and Thermal Degradation Study of 2-Nitroso-1napthol- 4, 4’ Diaminodiphenyl Ether-Formaldehyde Terpolymer Resin

Abstract

The Terpolymer resin (2N, 1N-4, 4'DADPEF-1) was synthesized by polymerization of monomers 2-Nitroso-1Napthol and 4, 4'Diaminodiphenyl Ether with formaldehyde in 1:1:2 molar proportion. The terpolymer resin was characterized by elemental analysis, spectral studies i.e. UV-Visible, FTIR and NMR spectroscopy. The surface characteristics were examined through scanning electron microscopy (SEM) at different magnifications. The tentative structure of the terpolymer was confirmed on the basis of spectral data. Freeman -Carroll and Sharp-Wentworth methods have been applied for the calculation of kinetic parameters. The thermogravimetric analysis (TGA) was performed to evaluate the thermal degradation characteristics and to ascertain its thermal stability. The residue left over after complete decomposition was found to be negligible (0.90% found and 1.07% calculated).