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Epoxy oligomers modified with epoxyphosphazenes

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Abstract

Phosphazene-containing epoxy oligomers are obtained through a one-stage method via the interaction of hexachlorocyclotriphosphazene with an excess of diphenylolpropane in the medium of epichlorohydrin in the presence of a solid alkali. With the use of 31Р NMR and MALDI mass spectrometry, it is shown that the main components of the phosphazene fraction are penta- and tetra-aryloxysubstituted cyclotriphosphazene compounds with the corresponding numbers of epoxy groups. The maximum content of the phosphazene fraction in phosphazene-containing epoxy oligomers (~40 wt %) is attained at a hexachlorocyclotriphosphazene-to-diphenylolpropane molar ratio of 1: 8. Phosphazene-containing epoxy oligomers cured with isomethyltetrahydrophthalic anhydride have oxygen indexes of 26–28 and are self-extinguishing.

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Authors and Affiliations

  1. Mendeleev University of Chemical Technology, Miusskaya pl. 9, Moscow, 125047, Russia

    K. A. Brigadnov, Yu. V. Bilichenko, V. A. Polyakov, S. N. Filatov & V. V. Kireev

  2. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Leninskii pr. 29, Moscow, 119991, Russia

    R. S. Borisov

  3. Central Research Institute for Special Machinery, ul. Zavodskaya 1, Khot’kovo, Moscow oblast, 141350, Russia

    K. I. Gusev

  4. Enikolopov Institute of Synthetic Polymer Materials, Russian Academy of Sciences, Profsoyuznaya ul. 70, Moscow, 117393, Russia

    T. A. Rudakova

Authors
  1. K. A. Brigadnov
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  2. Yu. V. Bilichenko
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  3. V. A. Polyakov
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  4. R. S. Borisov
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  5. K. I. Gusev
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  6. T. A. Rudakova
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  7. S. N. Filatov
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  8. V. V. Kireev
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Corresponding author

Correspondence to V. V. Kireev.

Additional information

Original Russian Text © K.A. Brigadnov, Yu.V. Bilichenko, V.A. Polyakov, R.S. Borisov, K.I. Gusev, T.A. Rudakova, S.N. Filatov, V.V. Kireev, 2016, published in Vysokomolekulyarnye Soedineniya, Seriya B, 2016, Vol. 58, No. 5, pp. 387–393.

The material of the paper will be presented at the 11th International Symposium “Polycondensation 2016,” September 11–15, in Moscow and St. Petersburg.

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Brigadnov, K.A., Bilichenko, Y.V., Polyakov, V.A. et al. Epoxy oligomers modified with epoxyphosphazenes. Polym. Sci. Ser. B 58, 549–555 (2016). https://doi.org/10.1134/S1560090416050018

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  • DOI: https://doi.org/10.1134/S1560090416050018

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