Determination of thermal lifetime and IR spectra of conducting polyaniline at various temperatures

WU Kezhong; WANG Xindong; DENG Gengfeng; MENG Xu; LIU Xiaodi

doi:10.13374/j.issn1001-053x.2005.05.051

Volume 27 Issue 5

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WU Kezhong, WANG Xindong, DENG Gengfeng, MENG Xu, LIU Xiaodi. Determination of thermal lifetime and IR spectra of conducting polyaniline at various temperatures[J]. Chinese Journal of Engineering, 2005, 27(5): 593-595. doi: 10.13374/j.issn1001-053x.2005.05.051

Citation:

WU Kezhong, WANG Xindong, DENG Gengfeng, MENG Xu, LIU Xiaodi. Determination of thermal lifetime and IR spectra of conducting polyaniline at various temperatures[J]. Chinese Journal of Engineering, 2005, 27(5): 593-595. doi: 10.13374/j.issn1001-053x.2005.05.051

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Determination of thermal lifetime and IR spectra of conducting polyaniline at various temperatures

doi: 10.13374/j.issn1001-053x.2005.05.051

1. Department of Chemistry, Hebei Normal University, Shijiazhuang 050016, China;
2. Metallurgical and Ecological Engineering School, University of Science and Technology Beijing, Beijing 100083, China

Received Date: 2004-01-02
Rev Recd Date: 2005-02-28

Available Online: 2021-08-17

Abstract

Abstract

Conducting polyaniline depended on environmental temperature. In order to determine the effect of temperature on polyaniline, polyanuline was electrosynthetized by the cyclic voltmmetric method in sulfuric acid. The thermal decomposition temperature ofpolyaniline was determined to be 285.7℃ by TAG. The thermal lifetimes were tested by the isothermal TG for regression of the lifetime equations at various weight-loss ratios of 5%, 7% and 10%. IR spectra showed that the characteristic absorption shifted to a higher number with increasing temperature, which was caused by the decreasing conjugate structure of polyaniline.
- polyaniline,
- TG,
- thermal lifetime,
- IR spectra