Surface physical and chemical properties of atmospheric pressure plasma-treated polyamideimide fibrous mats using attenuated total reflection Fourier transform infrared imaging

► Synthesis of PAI as a polymer precursor for electrospun fibrous mats. ► Optimum atmospheric pressure plasma treatment condition for the surface modification. ► Concentration of chemical groups does not increase at plasma power above 200 W. ► High power plasma treatment induces etching effect and oxidative reaction on surface.