Polymer Network Diffusion in Charged Gels
Soft Condensed Matter
2024-02-01 v1 Materials Science
Statistical Mechanics
Biological Physics
Chemical Physics
Abstract
The swelling kinetics of charged polymer gels reflect the complex competition among elastic, mixing, and ionic contributions. Here, we used dynamic light scattering to investigate the collective diffusion coefficient of model gels, whose polymer network structure was controlled so that the three contributions were comparable. We demonstrate that the collective diffusion coefficient stems from the sum of elastic, mixing, and ionic contributions, without evident cross-correlations. The significant ionic contribution conforms to the Donnan equilibrium, which explains equilibrium electrical potential gradients in biological systems.
Cite
@article{arxiv.2401.17551,
title = {Polymer Network Diffusion in Charged Gels},
author = {Shoei Sano and Takashi Yasuda and Takeshi Fujiyabu and Naoyuki Sakumichi and Takamasa Sakai},
journal= {arXiv preprint arXiv:2401.17551},
year = {2024}
}
Comments
6+4 pages, 4+7 figures