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Sensing behaviors of polymer/carbon nanotubes composites prepared in reversed microemulsion polymerization

Authors

  • Zhenhua Li,

    1. Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, People's Republic of China
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  • Qiang Li,

    1. Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, People's Republic of China
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  • Songmin Shang,

    1. Institute of Textiles and Clothing, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, People's Republic of China
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  • Liang Li,

    Corresponding author
    1. Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, People's Republic of China
    • Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, People's Republic of China
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  • Xiaoming Yang,

    Corresponding author
    1. College of Chemistry, Chemical Engineering and Materials Sciences, Soochow University, Suzhou 215123, People's Republic of China
    • College of Chemistry, Chemical Engineering and Materials Sciences, Soochow University, Suzhou 215123, People's Republic of China
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  • Xianghua Yu,

    1. Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, People's Republic of China
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  • Guoping Yan

    1. Key Laboratory for Green Chemical Process of Ministry of Education, School of Materials Science and Engineering, Wuhan Institute of Technology, Wuhan 430073, People's Republic of China
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Abstract

Polystyrene/carbon nanotubes composites were readily prepared by reversed microemulsion polymerization. Compared with the composites prepared by solution mixing, the uniform dispersion of carbon nanotubes in polymer matrix could be obtained more easily and the thermal and electrical properties of the as-prepared composites were also enhanced. The as-prepared composites were deposited onto a microelectrode array to fabricate a vapor sensor. The response for different organic vapors was evaluated by monitoring the change in the resistance of the composites upon exposure to various gases. The change in resistance was of the order of about 103 for the composites prepared by reversed microemulsion polymerization. The chemical sensors based on the composites prepared by reversed microemulsion polymerization presented excellent reproducibility and reversibility in response. © 2010 Wiley Periodicals, Inc. J Appl Polym Sci, 2011

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