Tetrafluoroaryl Phosphonic Acid Functionalized Polyphosphazenes - Synthesis, Characterization, and Evaluation of Proton Conductivity

Alter C, Wiesemann M, Neumann B, Stammler H-G, Hoge B (2020)
European Journal of Inorganic Chemistry (46): 4401-4408.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Abstract / Bemerkung
A convergent approach for the incorporation of tetrafluoroaryl phosphonate moieties into cyclic triphosphazenes and linear phosphazene resins is described. Our high yield procedure is based on the treatment of chlorinated poly- and cyclotriphosphazenes withp-HO(C6F4)P(O)(OR)(2)(R = Me, Et) in the presence of potassium carbonate. Characterization of the modified cyclotriphosphazenes was accomplished by NMR and IR spectroscopy as well as by mass spectrometry. Similarly, a phosphazene resin decorated with phosphonic esters is characterized by NMR and IR spectra and GPC. Exchange of the ethyl group by a trimethylsilyl group in the novel phosphazene derivatives was effected by the reaction with trimethylsilyl bromide. The resulting silyl phosphonates were converted into the corresponding phosphonic acids by exposure to an excess of methanol. Proton conductivities of the novel phosphonic acid derivatives of poly- and cyclotriphosphazenes were studied by electrochemical impedance spectroscopy under anhydrous conditions.
Stichworte
Polyphosphazenes; Fluorine; Proton conductivity; Phosphorus
Erscheinungsjahr
2020
Zeitschriftentitel
European Journal of Inorganic Chemistry
Ausgabe
46
Seite(n)
4401-4408
ISSN
1434-1948
eISSN
1099-0682
Finanzierungs-Informationen
Open-Access-Publikationskosten wurden durch die Universität Bielefeld im Rahmen des DEAL-Vertrags gefördert.
Page URI
https://pub.uni-bielefeld.de/record/2946496

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Alter C, Wiesemann M, Neumann B, Stammler H-G, Hoge B. Tetrafluoroaryl Phosphonic Acid Functionalized Polyphosphazenes - Synthesis, Characterization, and Evaluation of Proton Conductivity. European Journal of Inorganic Chemistry. 2020;(46):4401-4408.
Alter, C., Wiesemann, M., Neumann, B., Stammler, H. - G., & Hoge, B. (2020). Tetrafluoroaryl Phosphonic Acid Functionalized Polyphosphazenes - Synthesis, Characterization, and Evaluation of Proton Conductivity. European Journal of Inorganic Chemistry(46), 4401-4408. doi:10.1002/ejic.202000804
Alter, C., Wiesemann, M., Neumann, B., Stammler, H. - G., and Hoge, B. (2020). Tetrafluoroaryl Phosphonic Acid Functionalized Polyphosphazenes - Synthesis, Characterization, and Evaluation of Proton Conductivity. European Journal of Inorganic Chemistry, 4401-4408.
Alter, C., et al., 2020. Tetrafluoroaryl Phosphonic Acid Functionalized Polyphosphazenes - Synthesis, Characterization, and Evaluation of Proton Conductivity. European Journal of Inorganic Chemistry, (46), p 4401-4408.
C. Alter, et al., “Tetrafluoroaryl Phosphonic Acid Functionalized Polyphosphazenes - Synthesis, Characterization, and Evaluation of Proton Conductivity”, European Journal of Inorganic Chemistry, 2020, pp. 4401-4408.
Alter, C., Wiesemann, M., Neumann, B., Stammler, H.-G., Hoge, B.: Tetrafluoroaryl Phosphonic Acid Functionalized Polyphosphazenes - Synthesis, Characterization, and Evaluation of Proton Conductivity. European Journal of Inorganic Chemistry. 4401-4408 (2020).
Alter, Christian, Wiesemann, Markus, Neumann, Beate, Stammler, Hans-Georg, and Hoge, Berthold. “Tetrafluoroaryl Phosphonic Acid Functionalized Polyphosphazenes - Synthesis, Characterization, and Evaluation of Proton Conductivity”. European Journal of Inorganic Chemistry 46 (2020): 4401-4408.
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2020-12-22T10:40:42Z
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