Influence of Doped Degree in the Electrical Conductivity of Polyaniline Microfibers
M. Olvera-Gracia1,2, J. Santoyo-Salazar2, J. Aguilar-Hernandez3 and L. Mercado-Velazquez1
1Escuela Superior de Ingeniería Textil - I.P.N., Edificio No. 8 U.P.A.L.M., Lindavista, 07738 Ciudad de México; 2Centro de Investigación y de Estudios Avanzados del IPN. Av. Instituto Politécnico Nacional 2508, Col. San Pedro Zacatenco, Delegación Gustavo A. Madero, 07360 Ciudad de México; 3Escuela Superior de Física y Matemáticas - I.P.N., Edificio No. 9 U.P.A.L.M., Lindavista, 07738 Ciudad de México
Abstract: The present study is based on the processing of polyaniline fibers by electrospinning using polyethylene oxide as a stabilizing agent for textile fiber. Polyaniline was doped with camphorsulfonic acid in different percentages to evaluate its influence on the electrical conductivity. In this study, fibers were made from a solution of polyethylene oxide and polyaniline. Chloroform was used as solvent for these polymers. The obtained fibers were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) and electrical conductivity. The obtained membranes have been twisted to obtain a yarn having a diameter of (»481 mm), the degree of crystallinity corresponds to a semicrystalline material and their conductivity was similar to semiconductor behavior (range).
Keywords: Fibers, electrospinning, polyaniline, conductivity, doped.