PANPMMA凝胶聚合物电解质膜导电动力学分析.PDF

大学化学(Daxue Huaxue) November Univ. Chem. 2016, 31 (11), 61－66 61 ∙化学实验∙ doi: 10.3866/PKU.DXHX201603025 PAN/PMMA凝胶聚合物电解质膜导电动力学分析 李志云 邢佩雯 刘 敏 马晓燕* (西北工业大学理学院应用化学系，西安710129) 摘要：采用静电纺丝法制备PAN/PMMA (聚丙烯腈/聚甲基丙烯酸甲酯)凝胶聚合物电解质膜，用交流阻 抗法测试其在不同温度下的电导率，研究温度对凝胶聚合物电解质膜离子传输性能的影响规律；并与溶 液浇铸法制得的平滑膜进行对比，分析两种不同形式凝胶聚合物电解质膜的导电动力学规律，探索其导 电机理与微观形貌的关系。结果发现，两种薄膜的导电机理符合Arrhenius 公式，其中纺丝薄膜的离子 导电活化能较低。 关键词：静电纺丝；交流阻抗；活化能；离子电导率 中图分类号：G64 ；O6 Conductivity Kinetics Analysis of PAN/PMMA Gel Polymer Electrolyte Membrane LI Zhi-Yun XING Pei-Wen LIU Min MA Xiao-Yan* (Department of Applied Chemistry, School of Natural and Applied Sciences, Northwestern Polytechnical University, Xian 710129, P. R. China) Abstract: This experiment adopts electrospinning to prepare the PAN/PMMA gel polymer electrolyte membrane. The conductivity under different temperature was tested by AC impedance. The impact of temperature on the ion transport properties of composite gel polymer electrolyte membrane was explored. The prepared membrane was also compared with PAN/PMMA flat synovial membrane made by solvent casting method. The conductive kinetics of the two different forms of membranes was analyzed. The relationship between their conductive mechanism and microstructure was explored. The results showed that the conductive mechanism of the two kinds of membranes conforms to the Arrhenius formula, with the membrane made by electrostatic spinning having lower ion conductive activation energy. Key Words: Electrostatic spinning; AC impedance; Activ