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Waterborne acrylic–polyaniline nanocomposite as antistatic coating: preparation and characterization

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Abstract

An antistatic and electrically conductive acrylic–polyaniline nanocomposite coating was successfully synthesized by interfacial polymerization of aniline in the presence of acrylic latex. The acrylic latex was prepared through emulsion polymerization, and aniline was polymerized by in situ interfacial polymerization at the interface of acrylic latex/chloroform phase. Fourier transform infrared spectroscopy (FTIR), UV–Vis spectroscopy and CHNS elemental analysis revealed the existence of 6.24 wt% emeraldine salt of polyaniline (PAni) in the dried film of the nanocomposite. Scanning electron microscopy (SEM) confirmed the presence of colloidal polymer particles in the aqueous phase which was confirmed to have some advantages, including prevention of aggregation of particles, dispersibility improvement and enhancement of the PAni nanofibers aspect ratio in the acrylic polymer matrix. According to SEM results, PAni fibers with the length ranging from 12 to 67 µm and diameters between 0.078 and 1 µm, highly dispersed in the acrylic polymer matrix, were successfully synthesized. Thermal, electrical and mechanical properties of the acrylic copolymer were significantly affected by PAni incorporation. The onset degradation temperature in thermogravimetric analysis revealed that the thermal stability of the nanocomposite was improved compared to that of the pure acrylic copolymer. The nanocomposite film showed electrical conductivity of about 0.025 S/cm at room temperature, along with satisfactory mechanical properties, attractive as an antistatic material in coating applications.

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Acknowledgements

The authors are grateful to the University of Tabriz for support of the project.

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Authors and Affiliations

  1. Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran

    Abdolreza Mirmohseni & Ali Gharieh

  2. Department of Polymer Engineering and Color Technology, Amirkabir University of Technology Tehran Polytechnic, Tehran, Iran

    Manouchehr Khorasani

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  1. Abdolreza Mirmohseni
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  2. Ali Gharieh
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  3. Manouchehr Khorasani
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Correspondence to Abdolreza Mirmohseni.

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Mirmohseni, A., Gharieh, A. & Khorasani, M. Waterborne acrylic–polyaniline nanocomposite as antistatic coating: preparation and characterization. Iran Polym J 25, 991–998 (2016). https://doi.org/10.1007/s13726-016-0486-9

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  • DOI: https://doi.org/10.1007/s13726-016-0486-9

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