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交联型哌啶功能化聚芳醚阴离子交换膜的制备与性能

丁梦茹 苏王天慧 周维阳 王磊 李香丹

丁梦茹, 苏王天慧, 周维阳, 等. 交联型哌啶功能化聚芳醚阴离子交换膜的制备与性能[J]. 功能高分子学报,2022,35(5):1-8 doi: 10.14133/j.cnki.1008-9357.20220215001
引用本文: 丁梦茹, 苏王天慧, 周维阳, 等. 交联型哌啶功能化聚芳醚阴离子交换膜的制备与性能[J]. 功能高分子学报,2022,35(5):1-8 doi: 10.14133/j.cnki.1008-9357.20220215001
DING Mengru, SU Wangtianhui, ZHOU Weiyang, WANG Lei, LI Xiangdan. Preparation and Properties of Cross-Linked Piperidine Functionalized Polyarylether Anion Exchange Membranes[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20220215001
Citation: DING Mengru, SU Wangtianhui, ZHOU Weiyang, WANG Lei, LI Xiangdan. Preparation and Properties of Cross-Linked Piperidine Functionalized Polyarylether Anion Exchange Membranes[J]. Journal of Functional Polymers. doi: 10.14133/j.cnki.1008-9357.20220215001

交联型哌啶功能化聚芳醚阴离子交换膜的制备与性能

doi: 10.14133/j.cnki.1008-9357.20220215001
基金项目: 国家自然科学基金资助项目(51573031);中南民族大学中央高校项目(CZD19014)
详细信息
    作者简介:

    丁梦茹(1996—),女,河南商丘,硕士研究生,主要研究方向为功能高分子材料。E-mail:dingmr1121@163.com

    通讯作者:

    王 磊,E-mail:wanglei@nanoctr.cn

    李香丹, E-mail:lixiangdan@mail.scuec.edu.cn

  • 中图分类号: O631

Preparation and Properties of Cross-Linked Piperidine Functionalized Polyarylether Anion Exchange Membranes

  • 摘要: 将氯甲基化率为150%的聚芳醚砜(PSF)依次与对羟基苯甲醇、二氯亚砜反应,采用哌啶季铵化、碱化制备侧链型哌啶功能化聚芳醚砜阴离子交换膜(QPSF-Pip150)。控制交联剂与哌啶的比例,制备不同交联度的交联型阴离子交换膜(cQPSF-Pipx-TAPy)。通过核磁共振氢谱(1H-NMR)、傅里叶变换红外光谱(FT-IR)、热重分析(TGA)等对聚合物的结构及性能进行了表征与测试。结果表明:所制得的交联型阴离子交换膜在80 °C下离子传导率最高可达到131.5 mS/cm,而溶胀率仅有19.7%,在60 °C、1 mol/L NaOH溶液中浸泡20 d,其离子传导率仍保持初始的73.1% ~ 85.9%。交联有效提高了阴离子交换膜的力学性能、热稳定性、尺寸稳定性和碱性稳定性。

     

  • 图  1  cQPSF-Pipx-TAPy合成路线

    Figure  1.  Synthetic route of cQPSF-Pipx-TAPy

    图  2  样品的1H-NMR谱图

    Figure  2.  1H-NMR spectra of samples

    图  3  样品的FT-IR谱图

    Figure  3.  FT-IR spectra of samples

    图  4  AEM的离子传导率

    Figure  4.  Ionic conductivity of AEM

    图  5  碱性环境下AEM的(a)IEC与(b)σ随时间的变化

    Figure  5.  Variation of (a) IEC and (b) σ of AEM in alkaline environment as a function of time

    图  6  AEM的热重曲线

    Figure  6.  TGA curves of AEM

    图  7  AEM的力学性能

    Figure  7.  Mechanical properties of AEM

    表  1  AEM的凝胶分数、IEC、吸水率和溶胀率

    Table  1.   Gel fraction, IEC, water uptake and swelling ratio of AEM

    AEMGel fraction/%IEC/(mmol·g−1WU/%SR/%
    TheoreticalaTitrationb30 °C80 °C30 °C80 °C
    QPSF-Pip1501.891.6711.97.4
    cQPSF-Pip130-TAP2036.91.851.589.587.46.719.7
    cQPSF-Pip120-TAP3054.21.831.497.372.55.316.4
    a: Calculated by 1H―NMR; b: Calculated by titration measurements
    下载: 导出CSV
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出版历程
  • 收稿日期:  2022-02-15
  • 录用日期:  2022-03-25
  • 网络出版日期:  2022-04-01

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