Polymer Network Diffusion in Charged Gels
Fuente:
arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866910312080343040 |
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| author | Sano, Shoei Yasuda, Takashi Fujiyabu, Takeshi Sakumichi, Naoyuki Sakai, Takamasa |
| author_facet | Sano, Shoei Yasuda, Takashi Fujiyabu, Takeshi Sakumichi, Naoyuki Sakai, Takamasa |
| contents | 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_17551 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Polymer Network Diffusion in Charged Gels Sano, Shoei Yasuda, Takashi Fujiyabu, Takeshi Sakumichi, Naoyuki Sakai, Takamasa Soft Condensed Matter Materials Science Statistical Mechanics Biological Physics Chemical Physics 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. |
| title | Polymer Network Diffusion in Charged Gels |
| topic | Soft Condensed Matter Materials Science Statistical Mechanics Biological Physics Chemical Physics |
| url | https://arxiv.org/abs/2401.17551 |