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Conductivity, Mechanical and Thermal Studies on Poly(methyl methacrylate)-Based Polymer Electrolytes Complexed with Lithium Tetraborate and Propylene Carbonate

机译:四硼酸锂和碳酸丙烯酯复合的聚(甲基丙烯酸甲酯)基聚合物电解质的电导率,机械和热学研究

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摘要

A series of different composition ratio of polymer electrolytes based on poly(methyl methacrylate) (PMMA) as host polymer, lithium tetraborate (Li2B4O7) as salt, and propylene carbonate (PC) as plasticizer is produced by solution casting method. Fourier transform infrared (FTIR) spectroscopy studies are used to confirm the formation of polymer electrolyte complex. PMMA: Li2B4O7: PC (52.5:22.5:25.0 wt.%) is obtained as the highest conducting polymer electrolyte with a conductivity of 5.14 × 10−6 S/cm at room temperature (23 °C). The temperature-dependent conductivity of the polymer films shows Arrhenius-like behavior which reveals that the charge carriers move in a liquid-like environment. The addition of PC decreases the Young’s modulus and stress at peak values of the complexes. Thermogravimetric analysis (TGA) is employed to study the thermal stability of the electrolytes.
机译:基于聚甲基丙烯酸甲酯(PMMA)作为主体聚合物的一系列不同组成的聚合物电解质,四硼酸锂(Li 2 B 4 O 7 <通过溶液流延法生产作为盐的碳酸亚丙酯(PC)。傅里叶变换红外(FTIR)光谱研究用于确认聚合物电解质复合物的形成。 PMMA:Li 2 B 4 O 7 :PC(52.5:22.5:25.0 wt。%)作为具有最高导电性的聚合物电解质获得,在室温(23°C)下电导率为5.14×10 -6 S / cm。聚合物膜的随温度变化的电导率表现出类似于Arrhenius的行为,这表明电荷载流子在类似液体的环境中移动。添加PC会降低复合物峰值处的杨氏模量和应力。热重分析(TGA)用于研究电解质的热稳定性。

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