Solvation Number and Optical Absorbance Studies in Polyaniline Derivatives

Over the past two decades the polyaniline has received the greatest attention due to its stability, easy synthesis and the potential as a material for numerous applications. This makes PANI an attractive material for researchers. The solvation number in the polyaniline solution has been found to be of great interest during the recent years. Solvation number has effects of both physical and chemical. In the present work the solvation number on some polyaniline derivatives is analysed. The solutions of some polyaniline derivative are prepared for different molalities and measured at various temperatures. Solvation number of solutions depends on the number of moles of the solute and the solvent molecules present in the solution. The optical absorption spectra suggests that the presence of molecular interaction between the PANI and the solvent through enolic form. This analysis also confirms the dual nature of the solvent.