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首页> 外文期刊>RSC Advances >Novel composite membranes based on sulfonated poly(ether ether ketone) and adenosine triphosphate for enhanced proton conduction
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Novel composite membranes based on sulfonated poly(ether ether ketone) and adenosine triphosphate for enhanced proton conduction

机译：基于磺化聚（醚醚酮）和腺苷三磷酸酯的新型复合膜用于增强质子传导

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摘要

Adenosine triphosphate (ATP) molecules, which contain proton-conductive phosphoric acid groups, imidazole groups and amino groups are incorporated into sulfonated poly(ether ether ketone) (SPEEK) to fabricate novel composite membranes. The morphology, structure and proton conduction abilities of the prepared membranes are investigated. ATP coalesces with SPEEK through ionic interactions between amino groups and sulfonic acid groups, which are beneficial to the stable existence of ATP molecules within polymer networks and enhance the thermal stability of the composite membranes. Due to the formation of abundant acid-base pairs among ATP molecules as well as between ATP and SPEEK chains, the proton conductivities of composite membranes under different conditions are increased in comparison with the plain SPEEK membrane, and this improvement becomes more evident when humidity is decreased. Particularly, the SPEEK/ATP composite membrane displays a highest proton conductivity of 0.198 S cm(-1) at 80 degrees C and 100% RH. The proton conductivity of the SPEEK/ATP-20 membrane at 41% RH is nearly 30 times higher than that of the plain SPEEK membrane. The results indicate a promising potential of such acid-base pairs which contain -PO3H2 groups in enhancing the proton conduction of membrane materials.
机译：含有质子导电磷酸基团，咪唑基团和氨基的腺苷三磷酸（ATP）分子掺入磺化聚（醚醚酮）（Speek）中以制造新的复合膜。研究了制备膜的形态，结构和质子传导能力。 ATP通过氨基和磺酸基团之间的离子相互作用，这对于聚合物网络中的ATP分子的稳定存在并增强复合膜的热稳定性。由于ATP分子中的丰富酸碱对以及ATP和Speek链之间的形成，与普通稚味膜相比，不同条件下的复合膜的质子电导率增加，并且当湿度是时，这种改进变得更加明显。减少。特别地，Speek / ATP复合膜在80℃和100％RH下显示0.198秒（-1）的最高质子电导率。 Speek / ATP-20膜的质子电导率在41％RH下的近30倍高于普通斑膜膜的30倍。结果表明，这种酸碱对的有希望的潜力，其含有-po3H2基团在提高膜材料的质子传导方面。

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  • 来源
    《RSC Advances》 |2015年第92期|共8页
  • 作者

    Yin Yongheng; Wang Jiahui; Jiang Shengtao; Yang Xin; Zhang Xuya; Cao Ying; Cao Li; Wu Hong;

  • 作者单位

    Tianjin Univ Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Lanzhou Univ Coll Chem &

    Chem Engn Lanzhou 730000 Peoples R China;

    Tianjin Univ Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

    Tianjin Univ Sch Chem Engn &

    Technol Tianjin 300072 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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