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Thermal properties of sulfo-containing cation exchangers based on copolymers of vinylidene fluoride

  • Properties And Use Of Chemical Fibres
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Fibre Chemistry Aims and scope

Abstract

It was found that when sulfo-containing cation exchangers based on PVDF and its copolymers are heated in air, the reaction of dehydrofluorination of the sulfonated unit in VDF takes place in the 50–100°C temperature region and the reaction of formation of sulfones with the participation of sulfo groups and macromolecules of the polymer takes place in the 220–250°C region. Treating sulfo-containing PVDF cation exchangers with an excess of ammonia with subsequent heat treatment at 110°C and reduction with hydrochloric acid increases the thermal stability of the sulfo-containing cation exchangers, and the temperature of initial weight loss is 200°C. The apparent activation energies of dehydrofluorination, formation of sulfones, and degradation of the macromolecular chain were determined and were in satisfactory agreement with the published data.

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References

  1. A. A. Mukhin, V. I. Sushkov, O. M. Khloptseva, et al., Khim. Volokna, No. 5, 50–52 (1988).

  2. P. E. Tulupov, Stability of Ion-Exchange Materials [in Russian], Khimiya, Moscow (1984).

    Google Scholar 

  3. A. S. Novikov, F. A. Galil-Ogly, et al., Kauch. Rezina, No. 3, 4–10 (1962).

  4. R. L. Paciorek, L. C. Mitchell, and C. T. Lenk, J. Polym. Sci.,45, 405 (1960).

    Google Scholar 

  5. Yu. A. Kostrov, I. M. Velikanova, et al., Vysokomolek. Soedin.,A29, No. 10, 2122–2127 (1987).

    Google Scholar 

  6. N. G. Polyanskii, Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol.,15, No. 9, 1327–1329 (1972).

    Google Scholar 

  7. N. G. Polyanskii and V. M. Tyutyunnik, Izv. Vyssh. Uchebn. Zaved., Khim. Khim. Tekhnol.,15, No. 9, 1327–1329 (1972).

    Google Scholar 

  8. N. G. Polyanskii, G. V. Gorbunov, and N. L. Polyanskaya, Methods of Investigation of Ion Exchangers [in Russian], Khimiya, Moscow (1976).

    Google Scholar 

  9. P. E. Tulupov and O. N. Karpov, Zh. Fiz. Khim.,47, No. 6, 1420–1423 (1973).

    Google Scholar 

  10. N. N. Loginova, L. Ya. Madorskaya, and N. K. Podlesskaya, Vysokomolek. Soedin.,A25, No. 12, 2575 (1983).

    Google Scholar 

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Authors and Affiliations

  1. Russian Institute of Textile and Light Industry, Russia

    O. M. Khloptseva & A. A. Mukhin

Authors
  1. O. M. Khloptseva
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  2. A. A. Mukhin
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Translated from Khimicheskie Volokna, No. 6, pp. 43–47, November–December, 1994.

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Khloptseva, O.M., Mukhin, A.A. Thermal properties of sulfo-containing cation exchangers based on copolymers of vinylidene fluoride. Fibre Chem 26, 393–398 (1995). https://doi.org/10.1007/BF00554400

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