Polyaniline Composites Using three different acid as a secondary dopant: Preparation and Properties

摘要

In this paper, the preparation of PANI was investigated via in secondary doping in-situ chemical oxidation polymerization. We use NH_2SO_3H as dopant, and HP_3O_4, H_2SO_4 or HCl as secondary dopant, respectively. The influencing of products conductivity was discussed about difference secondary dopant with changing concentration. The synthesized polymer composites are characterized by Fourier Transform Infrared Spectroscopy (FTIR) and four probe conductivity apparatus. The results show that in redoping process, the conductivity of PANI was 3.1746 S/cm when the concentration of HCl was 1.0 mol/L. Meanwhile, the thermal stability of PANI prepared with HP_3O_4 or H_2SO_4 as secondary dopant was better than HC1 as secondary dopant.