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首页> 外文期刊>Journal of Applied Polymer Science >Preparation and Characterization of Low Environmental Humidity Sensitive Ionic Liquid Polymer Electrolytes
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Preparation and Characterization of Low Environmental Humidity Sensitive Ionic Liquid Polymer Electrolytes

机译：低环境湿度敏感性离子液体聚合物电解质的制备与表征

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Methyl 3-(3-(2-hydroxyethyl)imidazole-1-yl)propanoate chloride salt (IL-Cl), methyl 3-(3-(2-hydroxyethyl)imidazole-1-yl)propanoate bromate salt (IL-Br), and their derivatives modified by polyethylene glycol (PEG) through ester-exchange reaction (ILPEGs) were synthesized. First, the properties of those materials, especially their conductivity, have been extensively studied. Second, using the IL-PEG with the highest conductivity as a plasticizer and electrolyte, a series of gel polymer electrolytes were successfully fabricated from polyurethane, poly-1,4-butylene adipate glycol 2000, and IL-PEGs by melting blends with different mass ratios in a Haake torque rheometer. The surface morphology, thermal properties, and the surface resistivity of gel polymer electrolytes were studied by scanning electron microscopy, thermogravimetric analysis, differential scanning calorimetry, and surface resistivity test, respectively. Scanning electron microscopy pictures showed that the surface of polymer electrolyte is smoother than that without added ILPEGs. Thermogravimetric analysis results revealed that the polymer electrolytes will not decompose when the processing temperature is below 275℃. It was found that the surface resistivity of polymer electrolytes can be below 10~9 Ω, showing a good antistatic property, and it changes slightly as the relative humidity decreases from 40% to 0.1%, indicting that the material has low humidity sensitivity. This study is a new demonstration and development in ionic liquid based polymer electrolyte.
机译：3-（3-（2-（羟乙基）咪唑-1-基）丙酸甲酯盐酸盐（IL-Cl），3-（3-（2-（羟乙基）咪唑-1-基）丙酸甲酯盐酸盐），并合成它们的衍生物，并通过酯交换反应（ILPEG）用聚乙二醇（PEG）改性。首先，已经广泛研究了这些材料的特性，特别是它们的导电性。其次，使用具有最高电导率的IL-PEG作为增塑剂和电解质，通过熔融不同质量的共混物，成功地由聚氨酯，聚1,4-丁二酸己二酸酯二醇2000和IL-PEG制备了一系列凝胶聚合物电解质Haake扭矩流变仪中的比率。分别通过扫描电子显微镜，热重分析，差示扫描量热法和表面电阻率测试研究了凝胶聚合物电解质的表面形态，热性能和表面电阻率。扫描电子显微镜照片显示，与不添加ILPEG的聚合物相比，聚合物电解质的表面更光滑。热重分析结果表明，当加工温度低于275℃时，聚合物电解质不会分解。发现聚合物电解质的表面电阻率可以低于10〜9Ω，表现出良好的抗静电性能，并且随着相对湿度从40％降至0.1％的变化而略有变化，表明该材料具有较低的湿度敏感性。这项研究是基于离子液体的聚合物电解质的新的示范和发展。

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