Morphology and characterization of conductive films based on polyaniline-coated polystyrene latexes

The polyaniline (PANI)‐coated polystyrene (PS) latexes were synthesized, and the electrically conductive films were prepared thereafter. The weight ratio of PANI was 5%. Thermal analysis of the latices was performed using DSC and TGA. In this study, the electrically conductive films were prepared ab...

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Bibliographic Details
Published in:Journal of applied polymer science 2006-12, Vol.102 (6), p.5406-5413
Main Authors: Liau, Wen-Bin, Sun, Yu-Ting, Yang, Ling-Yueh, Wang, Lee-Yih, Chiu, Wen-Yen, Hsieh, Kuo-Huang, Tseng, Sheng-Mao
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
film formation
latex
Organic polymers
Physicochemistry of polymers
polyaniline
polystyrene
Properties and characterization
Surface properties
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Summary:The polyaniline (PANI)‐coated polystyrene (PS) latexes were synthesized, and the electrically conductive films were prepared thereafter. The weight ratio of PANI was 5%. Thermal analysis of the latices was performed using DSC and TGA. In this study, the electrically conductive films were prepared above the PS glass transition temperature (Tg). During the film formation, the effects of the annealing temperature and atmosphere (air or N2) on the film resistance were investigated. In addition, the film morphology was observed utilizing scanning electron microscopy. The film resistance decreased in the initial heating stage due to the increasing temperature and the compaction of film. Then the film resistance increased with further annealing due to the aging of PANI. Typically, the film resistance was about 6000 Ω/sq, and the conductivity was 0.3 S/cm. © 2006 Wiley Periodicals, Inc. J Appl Polym Sci 102: 5406–5413, 2006
ISSN:0021-8995
1097-4628
DOI:10.1002/app.24995