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Preparation of polyaniline nanomatrix formed in natural rubber

Polymer Journal volume 52, pages 1357–1365 (2020)Cite this article

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Abstract

Natural rubber-grafted polyaniline with a nanomatrix structure was prepared and characterized. The graft copolymerization of aniline on natural rubber was performed in the latex stage. Factorial experimental design and univariate experiments were used to evaluate the effect of the factors on the conversion of aniline in the graft copolymerization. The structure of the products was characterized through 1H-NMR spectroscopy. The thermal properties, electrical conductivity, and morphology of the products were investigated. The results from the factorial experimental design showed that reaction temperature was the most important factor affecting the conversion, pH was the next most important, and the other factors were relatively unimportant. Polyaniline was confirmed to graft onto natural rubber and form a nanomatrix structure in the resulting material. The thermal properties and electrical conductivity of natural rubber-grafted polyaniline with a nanomatrix structure were improved compared to those of a polyaniline/natural rubber blend with an island-matrix structure.

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Acknowledgements

This work was supported by the Vietnam National Foundation for Science and Technology Development [Grant Code NAFOSTED 104.02-2017.20].

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Authors and Affiliations

  1. School of Chemical Engineering, Hanoi University of Science and Technology, No.1 Dai Co Viet street, Hai Ba Trung district, Hanoi, Vietnam

    Nguyen Thu Ha & Thi Thuy Tran

  2. Department of Materials Science and Technology, Nagaoka University of Technology, Nagaoka, Niigata-ken, 940-2188, Japan

    Seiichi Kawahara

  3. Tokyo Institute of Technology, Meguro City, Tokyo, 152-8550, Japan

    Toshiaki Ougizawa

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  1. Nguyen Thu Ha
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  2. Thi Thuy Tran
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  3. Seiichi Kawahara
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  4. Toshiaki Ougizawa
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Correspondence to Nguyen Thu Ha.

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Nguyen, T.H., Tran, T.T., Kawahara, S. et al. Preparation of polyaniline nanomatrix formed in natural rubber. Polym J 52, 1357–1365 (2020). https://doi.org/10.1038/s41428-020-00403-9

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