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Tetrafluoroaryl Phosphonic Acid Functionalized Polyphosphazenes – Synthesis, Characterization, and Evaluation of Proton Conductivity
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2020-09-07 , DOI: 10.1002/ejic.202000804 Christian Alter 1 , Markus Wiesemann 1 , Beate Neumann 1 , Hans‐Georg Stammler 1 , Berthold Hoge 1
European Journal of Inorganic Chemistry ( IF 2.2 ) Pub Date : 2020-09-07 , DOI: 10.1002/ejic.202000804 Christian Alter 1 , Markus Wiesemann 1 , Beate Neumann 1 , Hans‐Georg Stammler 1 , Berthold Hoge 1
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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 with p‐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.
中文翻译：
四氟芳基膦酸官能化的聚磷腈–质子电导率的合成，表征和评估
描述了一种将四氟芳基膦酸酯部分结合到环状三磷腈和线性磷腈树脂中的收敛方法。我们的高收率程序是基于用p -HO（C 6 F 4）P（O）（OR）2处理氯化聚和环三磷腈的方法（R = Me，Et）在碳酸钾存在下。改性的环三磷腈的表征通过NMR和IR光谱以及通过质谱法完成。类似地，用膦酸酯修饰的磷腈树脂通过NMR和IR光谱以及GPC表征。通过与三甲基甲硅烷基溴的反应来实现新型磷腈衍生物中三甲基甲硅烷基的乙基的交换。通过暴露于过量的甲醇将所得的甲硅烷基膦酸酯转化为相应的膦酸。通过在无水条件下的电化学阻抗谱研究了聚和环三磷腈的新型膦酸衍生物的质子电导率。
更新日期：2020-09-07
中文翻译：
四氟芳基膦酸官能化的聚磷腈–质子电导率的合成，表征和评估
描述了一种将四氟芳基膦酸酯部分结合到环状三磷腈和线性磷腈树脂中的收敛方法。我们的高收率程序是基于用p -HO（C 6 F 4）P（O）（OR）2处理氯化聚和环三磷腈的方法（R = Me，Et）在碳酸钾存在下。改性的环三磷腈的表征通过NMR和IR光谱以及通过质谱法完成。类似地，用膦酸酯修饰的磷腈树脂通过NMR和IR光谱以及GPC表征。通过与三甲基甲硅烷基溴的反应来实现新型磷腈衍生物中三甲基甲硅烷基的乙基的交换。通过暴露于过量的甲醇将所得的甲硅烷基膦酸酯转化为相应的膦酸。通过在无水条件下的电化学阻抗谱研究了聚和环三磷腈的新型膦酸衍生物的质子电导率。
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