Conducting polymers doped with a mineral phase: structural and electrical study

2nd International Meeting for Researchers in Materials and Plasma Technology

物理学;材料科学

González, C.P.^1 ; Montaño, A.M.^1,2 ; Estrada, S.^1 ; Ortiz, C.^3

Grupo de Investigación en Materiales-GIM, Departamento de Ciencias Básicas, Universidad Pontifica Bolivariana Seccional Bucaramanga, Floridablanca, Colombia^1

Escuela de Química, Universidad Industrial de Santander, Bucaramanga, Colombia^2

Grupo de Investigación en Superficies, Electroquímicas y Corrosión-GSEC, Universidad Pedagógica y Tecnológica de Colombia, Tunja, Colombia^3

关键词: Acidic aqueous solution;    Ammonium peroxydisulfate;    Chemical oxidative polymerization;    Doped polymers;    Electrical studies;    Electrochemical analysis;    Oxidant reagents;    Weight percent;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/466/1/012020/pdf
DOI  :  10.1088/1742-6596/466/1/012020

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This work reports the results obtained of a series of novel doped conducting polymers (CPs) of polyaniline/hematite (PANI/HEM), which were synthesized in acidic aqueous solution by the in situ chemical oxidative polymerization, using ammonium peroxydisulfate as oxidant reagent. The synthesis was carried out with 20, 40 y 60 % (weight percent) contents of hematite (HEM) at 8 and 14 h of polymerization times (tP). These composites were structurally characterized by X-ray diffraction (XRD) and Fourier-transform infrared spectroscopy (FTIR). An electrochemical analysis was made by Electrochemical impedance spectroscopy (EIS). Results of this study allow to evaluate the influence of hematite on the improvement of the structural properties and in the increase of the electric conductivity (sac) of the doped polymers compared to CPs without dopant agents.