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Spinnability of SPPESK and its application in esterification

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Abstract

The electrospinning of sulfonated poly(phthalazinone ether sulfone ketone) (SPPESK) and its blend with polyether sulfone (PES) were investigated and the blend nanofibers were applied as a catalyst in esterification. Attempts to electrospin pure SPPESK resulted in electrospraying rather than electrospinning. However, a blend polymer solution of SPPESK and PES resulted in smooth electrospinning when SPPESK content was lower than 9 wt%. The geometrical properties such as fiber diameter and distribution, surface chemical properties such as inter-molecular interaction and crystalline, mechanical properties were investigated by SEM, FTIR, XRD, etc. The catalytic activities of SPPESK-PES nanofibers were measured by esterification of ethanol with acetic acid. A pseudo-homogeneous model was established to describe the kinetics of esterification with nanofiber as a catalyst. The results showed that the SPPESK-PES blend nanofiber had a high specific surface area (46.7–58.9 m2/g), good mechanical properties, good catalytic properties (ethanol conversion up to 80 % when reacted 8 h), and good forward rate constants (10.0 × 10−3–14.6 × 10−3 L/(mol∙min)).

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Acknowledgments

The authors gratefully acknowledge the Fundamental Research Funds for the Central Universities (WA1214062) and the National Natural Science Foundation of China (20076009, 21176067 and 21276075) for giving financial support.

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Authors and Affiliations

  1. State Key Laboratory of Chemical Engineering, Membrane Science and Engineering R&D Lab, Chemical Engineering Research Center, East China University of Science and Technology (ECUST), 130 Meilong Road, Shanghai, 200237, China

    Xiao-Hua Ma, Si-Wen Gu, Xin Wen & Zhen-Liang Xu

  2. Lab for Advanced Materials and Institute of Fine Chemicals, ECUST, 130 Meilong Road, Shanghai, 200237, China

    Xiao-Hua Ma & Jin-Long Zhang

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  1. Xiao-Hua Ma
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  2. Si-Wen Gu
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  3. Xin Wen
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Correspondence to Zhen-Liang Xu.

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Ma, XH., Gu, SW., Wen, X. et al. Spinnability of SPPESK and its application in esterification. J Polym Res 20, 155 (2013). https://doi.org/10.1007/s10965-013-0155-z

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  • DOI: https://doi.org/10.1007/s10965-013-0155-z

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