Abstract Excellent conducting solid polymer electrolyte films were prepared by using Polyvinyl alcohol (PVA) and Iron alum through a reactive blending process. The effect of the concentration of the iron alum on the conducting behavior was studied in detail by varying the concentration of the alum in the PVA matrix. The functionality was studied using the Infrared (FT-IR) spectroscopic technique. A thermal analysis of the synthesized polymer blend was made using the differential scanning calorimetric (DSC) method, indicating that the material possesses an excellent thermal response. The FT-IR and X-ray photoelectron spectroscopy (XPS) analyses confirm that the hydroxyl group of PVA is involved in the chemical reaction with the added iron alum. An X-ray diffraction (XRD) analysis confirms that the crystallinity is enhanced upon increasing the alum content. Scanning electron microscopy (SEM) along with XPS analysis reveals the presence of the desired atoms in the polymer film. The highest AC conductivity of 1.09 × 10−1 Scm−1 at 100 °C is obtained with in this system and the AC conductivity obeys the Jonscher power law.

中文翻译：

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基于 PVA 和铁明矾的高导电固体电解质薄膜：合成、表征和电性能

摘要 以聚乙烯醇（PVA）和铁明矾为原料，通过反应共混工艺制备了导电性优异的聚合物电解质薄膜。通过改变 PVA 基质中的明矾浓度，详细研究了铁明矾浓度对导电行为的影响。使用红外 (FT-IR) 光谱技术研究了该功能。使用差示扫描量热 (DSC) 方法对合成的聚合物共混物进行了热分析，表明该材料具有出色的热响应。FT-IR 和 X 射线光电子能谱 (XPS) 分析证实 PVA 的羟基参与了与添加的铁明矾的化学反应。X 射线衍射 (XRD) 分析证实，随着明矾含量的增加，结晶度提高。扫描电子显微镜 (SEM) 和 XPS 分析揭示了聚合物薄膜中所需原子的存在。在该系统中获得了 100 °C 时 1.09 × 10-1 Scm-1 的最高交流电导率，并且交流电导率服从 Jonscher 幂律。