writer：Luo Kun, Shi Nanlin, Sun Chao
keywords：polyaniline，electrochemical synthesis，thermal transition，crosslinking reaction， kinetic parameter
source：期刊
specific source：Polymer Degradation and Stability
Issue time：2006年
The thermal stability of polyaniline (PAni) is of great importance in commercial applications. PAni and its emeraldine base form (PAni-EB) were electrochemically synthesized and subjected to thermogravimetric analysis (TGA) in inert atmosphere, which illustrated that the dopant HClO4 could act as the oxidizing agent at elevated temperature and caused serious decomposition of PAni. Combined with differential scanning calorimetry (DSC), in-situ X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) analyses, the crosslinking reaction among PAni-EB molecules at about 250 degrees C was characterized, and the kinetic parameters were calculated by applying different heating rates in the DSC measurement. (c) 2006 Elsevier Ltd. All rights reserved.