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    Relating alkaline stability to the structure of quaternary phosphonium cations

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    Zhang_2018.pdf (683.7Kb)
    Date
    2018-07-25
    Author
    Zhang, Bingzi
    Long, Hai
    Kaspar, Robert B.
    Wang, Junhua
    Gu, Shuang
    Zhuang, Zhongbin
    Pivovar, Bryan
    Yan, Yushan
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    Citation
    B. Zhang, H. Long, R. B. Kaspar, J. Wang, S. Gu, Z. Zhuang, B. Pivovar and Y. Yan, RSC Adv., 2018, 8, 26640
    Abstract
    Alkali-stable quaternary phosphonium (QP) is a type of cationic group for hydroxide exchange membranes (HEMs). To elucidate the relationship between structure and alkaline stability, we investigated the kinetics and degradation mechanism of a series of QP cations by both experiment and computation, and established a semi-empirical formula based on the Taft equation to directly estimate alkaline stability of QP cations from the P-31 NMR chemical shift delta and the steric substituent constant E-s, facilitating the search for QP cations with improved alkaline stability.
    Description
    This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. Material from this article can be used in other publications provided that the correct acknowledgement is given with the reproduced material and it is not used for commercial purposes.
    URI
    https://doi.org/10.1039/c8ra03440k
    http://hdl.handle.net/10057/15521
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