EPR studies of blends of polyaniline with poly(methyl methacrylate-co-glycidyl methacrylate iminodiacetic acid)

A novel conductive blends of polyaniline (PANI) with poly(methyl methacrylate-co-glycidyl methacrylate iminodiacetic acid) (PANI-PMGI) was prepared by in situ dispersion polymerization. The PANI-PMGI blends were characterized by UV-vis, FTIR and electron paramagnetic resonance (EPR) spectra. The structure of the PANI-PMGI blends was similar to emeraldine salt proved by UV-vis and FTIR. The value of ΔHpp, lineshape, g factor, Ns and A/B ratio of blends were investigated by EPR. The results of EPR indicated that the intermolecular interaction between PANI and PMGI was dependent on the content of PANI and temperature.