Summary
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 2.59×1O-5S/cm at 50°C. 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.
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Matsumi, N., Mizumo, T. & Ohno, H. Single ion conductive characteristics of poly(organoboron halide)-imidazole complex. Polymer Bulletin 51, 389–394 (2004). https://doi.org/10.1007/s00289-004-0229-5
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DOI: https://doi.org/10.1007/s00289-004-0229-5