Synthesis and studies of semiconducting piperazine–aniline copolymer

Synthesis of piperazine–aniline copolymer has been studied by using various acids. The copolymer was characterized by spectral and physical techniques such as UV–Visible, FT-IR, fluorescence, viscosity, density and SEM studies. Conductivity of the copolymer was tested with various counter ions. The copolymer was found to have significant conductivity in the region of semiconductors. Morphological study reveals that the neutral copolymer forms into spongy and porous structure. Conductivity, density and viscosity are very much influenced by the nature of counter ions.