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首页> 外文期刊>RSC Advances >Facile synthesis and properties of a cation exchange membrane with bifunctional groups prepared by pre-irradiation graft copolymerization
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Facile synthesis and properties of a cation exchange membrane with bifunctional groups prepared by pre-irradiation graft copolymerization

机译：通过预照射接枝共聚制备的双官能团的阳离子交换膜的容纳合成与性能

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摘要

A new type of a cation exchange membrane named ETFE-g-poly(AA-co-SSS) with bifunctional groups was synthesized by a one-step method. Its preparation by an electron beam-induced pre-irradiation grafting method and the effects of reaction temperature, monomer concentration, pH value of the grafting solution, storage time and temperature of the irradiated poly(ethylene-alt-tetrafluoroethylene) (ETFE) films on the grafting yield were studied. A total concentration of 2 mol L-1 of monomers was found to be beneficial for acrylic acid (AA) and sodium styrene sulfonate (SSS) co-grafting onto the ETFE films. Infrared spectroscopic analysis of the grafted membrane confirmed the existence of sulfonate and carboxylic acid groups. The contact angle of the grafted membrane decreased from 94.3 to 46.7 degrees with the increase in grafting yield. The higher the grafting yield, the faster the response and recovery rate with respect to humidity. AFM images showed that the diameter of the grafted chains on the surface of ETFE membranes was about 30 nm. The voltage of the grafted membrane was stable after 100 cycles of charge-discharge; thus, the prepared membranes have great potentials to be used as separators in secondary batteries.
机译：通过一种步骤方法合成了一种具有双官能基团的ETFE-G-Poly（AA-Co-SSS）的新型阳离子交换膜。通过电子束诱导的预照射移植方法和反应温度，单体浓度，接枝溶液的pH值，辐照聚（乙烯 - 乙烯 - 四氟乙烯）（ETFE）薄膜的效果，单体浓度，pH值的影响研究了嫁接产量。发现2mol L-1的单体的总浓度是有益于丙烯酸（AA）和苯乙烯磺酸钠（SSS）共嫁接到ETFE薄膜上。接枝膜的红外光谱分析证实了磺酸盐和羧酸基团的存在。接枝膜的接触角随94.3至46.7度，随着嫁接产率的增加。接枝产量越高，湿度越快，响应率越快。 AFM图像表明，ETFE膜表面上接枝链的直径约为30nm。接枝膜的电压在电荷放电100次循环后稳定;因此，制备的膜具有很大的潜在电位作为二次电池中的分离器。

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  • 来源
    《RSC Advances》 |2018年第46期|共8页
  • 作者

    Zu Jianhua; Tang Fangdong; He Linfeng; Fu Lingxiao;

  • 作者单位

    Shanghai Jiao Tong Univ Sch Nucl Sci &

    Engn Shanghai 200240 Peoples R China;

    Shanghai Inst Measurement &

    Testing Technol Shanghai 201203 Peoples R China;

    Shanghai Inst Measurement &

    Testing Technol Shanghai 201203 Peoples R China;

    Shanghai Jiao Tong Univ Sch Nucl Sci &

    Engn Shanghai 200240 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
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