Synthesis & Characterization of Terpolymers of Salicylic Acid & Dithiooxamide with Trioxane

Abstract

Terpolymers have been synthesized by the condensation of salicylic acid (S) and dithiooxamide (rubionic acid) (R) with trioxane (T) in the presence of acid catalysts using varying molar proportions of the reactants. Compositions of the terpolymers have been determined by elemental analysis. The number average molecular weights (Mn) have been determined by conductometric titration in non-aqueous medium. Intrinsic viscosities of the solutions of the terpolymers have been determined in dimethylformamide. Thermal behaviour of each terpolymer has also been studied by thermo gravimetric analysis (TGA). The terpolymers have been characterized by studying their IR spectra, reflectance spectra, absorption spectra, X-ray diffraction patterns and electrical conductivities.