Bromine Addition Improving Activation Energy and Electrical Conductivity of Electrospun Poly Methyl Meth Acrylate (PMMA) Thin Film Nanofibers Conductive Polymers

摘要

Poly (methyl methacrylate) doped with (0, 0.3, 0.5, 0.7, and 0.9) wt. % of bromine additives conductive polymers films were prepared by electrospinning technique. The polymeric solution investigation lead that increasing the bromine weight addition decrease viscosity and increase both surface tension and electrical conductivity .The morphology of the prepared films was characterized by scanning electron microscopy ,the average fiber diameter measured statistically from the SEM image was equal to 800 nm for PMMA with 0.7 wt.% bromine thin film, and 400 nm for the pure PMMA thin film. The Bromine addition improved the electrical conductivity of the prepared films with increasing bromine concentration, from (29.5518× 10-9 S/cm) for pure PMMA film to (224.870 × 10-9 S/cm) for PMMA with 0.9 wt. % of bromine additives at room temperature. Activation energy of the polymeric film decreased from 0.4483 e.V for pure PMMA film to 0.3783 eV for PMMA with 0.9 wt. % bromine film. Key words; Electro spinning, Electrical conductivity. Bromine ,PMMA ,Activation energy