Single ion conductive characteristics of poly(organoboron halide)-imidazole complex
Single ion conductive characteristics of poly(organoboron halide)-imidazole complex
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DOI：
10.1007/s00289-004-0229-5
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发表时间：
2004-04-01
期刊：
影响因子：
3.2
通讯作者：
Ohno, H
中科院分区：
文献类型：
--
作者：
Matsumi, N;Mizumo, T;Ohno, H
以1，7-辛炔为原料，通过硼氢化聚合，再与1-甲基咪唑和甲醇反应，合成了聚有机硼-咪唑配合物。用交流阻抗法研究了聚合物的离子导电性能。锂盐的最佳浓度为100unitmol%。在二（三氟甲烷砜）酰亚胺锂（LiTFSI）存在下，由约50%甲氧基硼单元组成的聚合物络合物在50 ℃下的离子电导率为2.59 × 10（-5）S/cm。该体系的锂离子迁移数为0.47，表明阴离子被刘易斯酸性甲氧基硼单元捕获。
Poly(organoboron halide)-imidazole complex was prepared by hydroboration polymerization of 1,7-octadiene with monobromoborane-methylsulfide complex and subsequent polymer reaction with 1-methylimidazole and methanol. The ion conductive characteristics of the polymer was evaluated by ac impedance method. The optimized concentration of lithium salt was 100 unitmol% to methoxyboron unit. In the presence of lithium bis(trifluoromethane sulfone) imide (LiTFSI), the polymer complex composed of approximately 50% methoxyboron unit exhibited ionic conductivity of 2.59x1O(-5)S/cm at 50degreesC. The lithium ion transference number for this system was calculated to be 0.47, indicating that anions were significantly trapped by Lewis acidic methoxyboron unit.