Swelling of Spherical Polyelectrolyte Gels

Ming-Yu Duan; Jia-Dong Chen; Yi-Ming Liu; Zhao-Feng Peng; Guang Chen

doi:10.1007/s10118-024-3152-2

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Swelling of Spherical Polyelectrolyte Gels

RESEARCH ARTICLE | Updated：2024-08-27

- Swelling of Spherical Polyelectrolyte Gels
- Chinese Journal of Polymer Science Vol. 42, Issue 9, Pages: 1386-1392(2024)
- Affiliations：
  
  Department of Advanced Manufacturing and Robotics, College of Engineering, Peking University, Beijing 100871, China
- Author bio：
  
  guangc@pku.edu.cn
- Funds：
- DOI：10.1007/s10118-024-3152-2
  CLC：
- Received：11 April 2024，
  
  Revised：2024-04-25，
  
  Accepted：30 April 2024，
  
  Online First：06 June 2024，
  
  Published：01 September 2024
- Accepted：
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Duan, M. Y.; Chen, J. D.; Liu, Y. M.; Peng, Z. F.; Chen, G. Swelling of spherical polyelectrolyte gels. Chinese J. Polym. Sci. 2024, 42, 1386–1392

Ming-Yu Duan, Jia-Dong Chen, Yi-Ming Liu, et al. Swelling of Spherical Polyelectrolyte Gels[J]. Chinese Journal of Polymer Science, 2024, 42(9): 1386-1392.
Duan, M. Y.; Chen, J. D.; Liu, Y. M.; Peng, Z. F.; Chen, G. Swelling of spherical polyelectrolyte gels. Chinese J. Polym. Sci. 2024, 42, 1386–1392 DOI： 10.1007/s10118-024-3152-2.

Ming-Yu Duan, Jia-Dong Chen, Yi-Ming Liu, et al. Swelling of Spherical Polyelectrolyte Gels[J]. Chinese Journal of Polymer Science, 2024, 42(9): 1386-1392. DOI： 10.1007/s10118-024-3152-2.

摘要

We develop a new theory to understand the swelling behavior of spherical polyelectrolyte gels with added salt. Our model reveals two scaling regimes for the swelling ratio

which agrees with experiments. We anticipate that this work will shed light on multiple applications of polyelectrolyte gels in biomedicine and advanced manufacturing.

Abstract

Polyelectrolyte (PE) gels

distinguished by their unique stimuli-responsive swelling behavior

serve as the basis of broad applications

such as artificial muscles and drug delivery. In this work

we present a theoretical model to analyze the electrostatics and its contribution to the swelling behavior of PE gels in salt solutions. By minimizing the free energy of PE gels

we obtain two distinct scaling regimes for the swelling ratio at equilibrium with respect to the salt concentration. We compare our predictions for the swelling ratio with experimental measurements

which show excellent agreement. In addition

we employ a finite element method to assess the applicability range of our theoretical model and assumptions. We anticipate that our model will also provide valuable insights into drug adsorption and release

deformation of red blood cells

4D printing and soft robotics

where the underlying mechanism of swelling remains enigmatic.

关键词

Keywords

references

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