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首页> 外文期刊>Journal of Applied Polymer Science >Soft Segmental Effect of Methylene Bis(p-cyclohexyl isocyanate) Based Thermoplastic Polyurethane Impregnated with Lithium Perchlorate/Propylene Carbonate on Ionic Conductivity
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Soft Segmental Effect of Methylene Bis(p-cyclohexyl isocyanate) Based Thermoplastic Polyurethane Impregnated with Lithium Perchlorate/Propylene Carbonate on Ionic Conductivity

机译：高氯酸锂/碳酸亚丙酯浸渍亚甲基双（对-环己基异氰酸酯）基热塑性聚氨酯对离子电导率的软分段效应

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摘要

Thennoplastic polyurethane (TPU) was employed as the polymer matrix for ion conduction as gelled electrolytes with lithium perchlorate (LiC1O4) in propylene carbonate (PC) solution. The TPU was prepared by methylene bis(p-cyclohexyl isocya- nate) as the hard segment while employing both poly(ethylene glycol) (PEG) and poly(tetramethylene glycol) (PTMG) as the soft segments. The copolymer comprising both PEG and PTMG was prepared such that it possessed the combined characteristics of good conductivity from the former and good mechanical properties from th~ latter. All the polymers were characterized by gel penneation chromatography, differential scan- ning calorimetry, and Fourier transfonn IR spectroscopy. The conductivity data were obtained from alternating current impedance experiments. The results revealed that the copolymer containing both PEG and PTMG as the soft segments showed better perfonnance than TPU containing either PEG or PTMG. The copolymer TPU(PEG/ PTMG) proved to be a good gelled electrolyte from 5 to 85°C. This copolymer, impreg- nated with 150% LiC1O4/PC, possessed good mechanical strength and conductivity as high as 10-3 S/cm.
机译：然后，将非塑性聚氨酯（TPU）用作离子导电的聚合物基体，与碳酸亚丙酯（PC）溶液中的高氯酸锂（LiCl4）形成凝胶状电解质。 TPU是由亚甲基双（对-环己基异氰酸酯）作为硬链段，同时使用聚乙二醇（PEG）和聚丁二醇（PTMG）作为软链段制备的。制备同时包含PEG和PTMG的共聚物，使得其具有前者良好的导电性和后者具有良好的机械性能的组合特征。所有聚合物均通过凝胶渗透色谱法，差示扫描量热法和傅立叶透射红外光谱法进行表征。电导率数据是从交流阻抗实验中获得的。结果表明，与同时含有PEG或PTMG的TPU相比，同时含有PEG和PTMG作为软链段的共聚物表现出更好的性能。 TPU（PEG / PTMG）共聚物在5至85°C的温度下均证明是良好的凝胶电解质。含150％LiCl4 / PC的共聚物具有良好的机械强度和电导率，高达10-3 S / cm。

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