AI 中文总结
该研究探究电荷调控(CR)对聚电解质水凝胶非均匀溶胀的影响,采用耦合电-弹性的泊松-玻尔兹曼理论,发现CR会增强非均匀溶胀,为相关水凝胶的调控提供理论依据。
AI 中文摘要
我们研究电荷调控(CR)对聚电解质水凝胶非均匀溶胀行为的影响,考虑结合局部聚合物密度与弹性变形电-弹性耦合的泊松-玻尔兹曼理论,在不同盐浓度下探究弹性位移与聚合物密度的空间分布,并将电荷调控凝胶与总电荷相同的固定电荷(非CR)凝胶进行对比。结果显示,CR会诱导空间变化的电荷分数,增强电-弹性响应,导致比非CR凝胶更强的非均匀溶胀;这些发现为理解和控制响应型聚电解质水凝胶的非均匀溶胀提供了理论基础。
英文摘要
We investigate the impact of charge regulation (CR) on the non-uniform swelling behavior of polyelectrolyte hydrogels. The Poisson-Boltzmann theory with electro-elastic coupling between the local polymer density and elastic deformation is considered. We investigate the spatial distributions of the elastic displacement and polymer density under different salt concentrations and compare charge-regulated gels with fixed-charge (non-CR) gels of the same net charge. Our results show that the CR induces spatially varying charge fractions, which strengthen the electro-elastic response and lead to stronger non-uniform swelling compared with non-CR gels. These findings provide a theoretical basis for understanding and controlling non-uniform swelling in responsive polyelectrolyte hydrogels.