荷电微凝胶平衡性质的Poisson-Boltzmann-Flory方法
Equilibrium properties of charged microgels: a Poisson-Boltzmann-Flory approach
摘要：
用Poisson-Boltzmann和Flory理论研究了离子微凝胶的平衡性质。溶胀行为，密度分布，和有效电荷都计算在一个自洽的方式。特别注意盐度对这些量的影响。结果表明，盐的加入量对平衡微凝胶的尺寸有很大的影响。增加盐浓度导致微凝胶体积的显著减小，因此将其内部物质-溶剂分子和解离离子-释放到溶液中。最后，离子微凝胶的细胞模型的背景下的电荷重整化的问题进行了简要说明。
英文摘要：
The equilibrium properties of ionic microgels are investigated using a combination of the Poisson-Boltzmann and Flory theories. Swelling behavior, density profiles, and effective charges are all calculated in a self-consistent way. Special attention is given to the effects of salinity on these quantities. It is found that the equilibrium microgel size is strongly influenced by the amount of added salt. Increasing the salt concentration leads to a considerable reduction of the microgel volume, which therefore releases its internal material -- solvent molecules and dissociated ions -- into the solution. Finally, the question of charge renormalization of ionic microgels in the context of the cell model is briefly addressed.
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