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New Epoxy Resin Polymerization Catalysts Based on N,N-Dimethylaminoalkylamides of Perfluoroalkanoic Acids

  • Macromolecular Compounds and Polymeric Materials
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Abstract

A series of N,N-dimethylaminoalkylamides of perfluorobutanoic and perfluoropentanoic acids were prepared, and the activity of these amides in curing of ED-20 commercial epoxy resin was studied. Data of differential thermal analysis and Fourier IR spectroscopy, taking into account the gel fraction content of the cured composites, show that the curing agent reactivity increases with an increase in the weight fraction of the hydrocarbon moiety and with a decrease in its fluorine content. Evaluation of the adhesion strength in gluing St.3 steel with amide-cured ED-20 epoxy resin shows that all the compounds synthesized ensure two times more efficient gluing compared to the resin cured with the standard curing agent, polyethylenepolyamine. In gluing of D16 aluminum alloy, the gluing efficiency, on the contrary, slightly decreases.

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Notes

  1. MVI (Measurement Procedure) 88-16358-95–2009: Determination of the Weight Fraction of Fluorine in Organic Compounds by the Spectrophotometric Method. Center for Shared Use “Spectroscopy and Analysis of Organic Compounds,” Certified by Sertimet Center for Metrology and Certification, Ural Branch, Russian Academy of Sciences, September 18, 2009.

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Funding

The study was performed within the framework of the government assignment for the Postovsky Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences (theme АААА-А19-119012290116-9) using the equipment and internal references for measuring of the 1H and 19F chemical shifts of the Center for Shared Use “Spectroscopy and Analysis of Organic Compounds.” The shear strength of adhesive joints was measured within the framework of the government assignment for the Institute of Engineering Science, Ural Branch, Russian Academy of Sciences, (theme АААА-А18-118020790145-0) using the equipment of the Plastometry Center for Shared Use.

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Authors and Affiliations

  1. Postovsky Institute of Organic Synthesis, Ural Branch, Russian Academy of Sciences, 620108, Yekaterinburg, Russia

    V. A. Osipova, T. I. Gorbunova, M. A. Barabanov, A. V. Mekhaev & A. V. Pestov

  2. Institute of Engineering Science, Ural Branch, Russian Academy of Sciences, 620049, Yekaterinburg, Russia

    D. I. Vichuzhanin & S. V. Smirnov

  3. Yeltsin Ural Federal University, 620002, Yekaterinburg, Russia

    A. V. Pestov

Authors
  1. V. A. Osipova
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  2. T. I. Gorbunova
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  3. M. A. Barabanov
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  4. A. V. Mekhaev
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  5. D. I. Vichuzhanin
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  6. S. V. Smirnov
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  7. A. V. Pestov
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Corresponding author

Correspondence to V. A. Osipova.

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The authors declare that they have no conflict of interest.

Additional information

Translated from Zhurnal Prikladnoi Khimii, No. 1, pp. 49–55, December, 2022 https://doi.org/10.31857/S0044461822010066

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Osipova, V.A., Gorbunova, T.I., Barabanov, M.A. et al. New Epoxy Resin Polymerization Catalysts Based on N,N-Dimethylaminoalkylamides of Perfluoroalkanoic Acids. Russ J Appl Chem 95, 53–58 (2022). https://doi.org/10.1134/S1070427222010074

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