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以聚氨酯、高氯酸钠盐和软段模型化合物为组分 ,制备了一系列的聚氨酯型聚合物固体电解质 .利用红外光谱、差示扫描量热、复阻抗谱等手段对该体系进行了表征 .结果表明 ,软段模型化合物对所研究的聚氨酯 /软段模型化合物 /高氯酸钠盐复合体系中离子 -聚合物间相互作用、玻璃化转变温度、离子电导率均有显著的影响 .软段模型化合物聚乙二醇 (Mn=1 0 0 0 )的加入会引起体系玻璃化转变温度和离子迁移表观活化能的降低 ,导致聚氨酯硬段的聚集 .随着体系中软段模型化合物含量的增加 ,该固体电解质的电导率相应增加 ,室温下最高可达 1 0 μS/cm.
A series of polyurethanes polymer solid electrolytes were prepared from polyurethane, perchlorate sodium salt and soft-phase model compounds.The system was characterized by means of infrared spectroscopy, differential scanning calorimetry and complex impedance spectroscopy The results show that the soft segment model compounds have a significant effect on the ionic - polymer interaction, glass transition temperature and ionic conductivity in the polyurethane / soft segment model compound / perchlorate composite system studied. The addition of poly (ethylene glycol) (Mn = 100) can cause the decrease of the glass transition temperature and the apparent activation energy of ion mobility, resulting in the aggregation of hard segment of polyurethane. With the content of soft segment model compounds in the system As a result, the conductivity of the solid electrolyte increases correspondingly to as high as 10 μS / cm at room temperature.