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本文采用柱形胞腔模型以及Vink的近似方法,求解聚电解质溶液的Poisson-Boltzmann方程,得到不同条件下聚离子周围静电势的分布.进而得到了不同条件下聚离子、反离子和同电荷离子的活度系数及溶剂的渗透系数.所得结果与实验值能较好地吻合.
In this paper, the Poisson-Boltzmann equation of polyelectrolyte solution is obtained by the cylindrical cell model and the Vink approximation method, and the electrostatic potential distribution around the polyion is obtained under different conditions. Then the polycation, counterion and the same charge ion The activity coefficient and the solvent permeability coefficient.The results obtained are in good agreement with the experimental data.