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本文研究了聚甲基丙烯酸乙基磺酸锂/聚(甲基丙烯酸齐聚氧化乙烯醋一丙烯酰胺)/二甲基多缩乙二醇共混聚合物单离子导体导电性和传质机理。用极化反转法测定了共混物的离子淌度。在25℃,该共混物单离子导体电导率和锂离子淌度分别为5.2×10~(-6)s·cm~(-1)和3.0×10~(-8)cm~2·V~(-1)·s~(-1)。由离子淌度计算得到50℃时锂离子扩散系数和迁移数分别为4.2×10~(-9)cm~2·s~(-1)和0.994。实验结果证实该共混物是一种单阳离子导体,是通过热活化跳跃机制完成阳离子传质过程的.
In this paper, the conductivity and mass transfer mechanism of poly (ethyleneisocyanate) / poly (ethylenediamine-co-acrylamide) / dimethylpolyethylene glycol polymer blends were investigated. Polarization inversion method was used to determine the ionic mobility of the blends. At 25 ℃, the conductivity and the lithium ion mobility of the single ion conductor of the blends were 5.2 × 10 ~ (-6) s · cm -1 and 3.0 × 10 ~ (-8) cm ~ 2 · V, respectively ~ (-1) · s ~ (-1). The diffusion coefficient and the migration number of lithium ion at 50 ℃ calculated by the ion mobility are 4.2 × 10 -9 cm -2 · s -1 and 0.994, respectively. The experimental results show that the blend is a single cation conductor, which is accomplished by thermal activation and jumping mechanism.