Effect of Thickness on the pH Responsiveness of Strong Polyelectrolyte Brushes

Guang-Tao Mei; Yue Huang; Jian Zhang; Guang-Ming Liu

doi:10.1007/s10118-025-3464-x

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Effect of Thickness on the pH Responsiveness of Strong Polyelectrolyte Brushes

RAPID COMMUNICATION | Updated：2025-12-03

- Effect of Thickness on the pH Responsiveness of Strong Polyelectrolyte Brushes
- Effect of Thickness on the pH Responsiveness of Strong Polyelectrolyte Brushes
- Chinese Journal of Polymer Science 2025年43卷第12期页码：2185-2190
- Affiliations：
  
  a.Hefei National Research Center for Physical Sciences at the Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China
  b.Zhejiang Key Laboratory of Bio-based Health Functional Fiber Materials, College of Material and Textile Engineering, Jiaxing University, Jiaxing 314001, China
- Author bio：
  
  jz09275@zjxu.edu.cn (J.Z.)
  gml@ustc.edu.cn (G.M.L.)
- Funds：
  
  This work was financially supported by the National Natural Science Foundation of China (Nos. 22273098, 52033001 and 22303032), the Key Project of Anhui Province Science and Technology Innovation Platform (No. S202305a12020030), and the Science and Technology Program Project of Zhejiang Province, China (No. 2025ZY01057). This work was partially carried out at the USTC Center for Micro and Nanoscale Research and Fabrication.;Electronic supplementary information (ESI) is available free of charge in the online version of this article at http://doi.org/10.1007/s10118-025-3464-x.
- DOI：10.1007/s10118-025-3464-x
  中图分类号：
- 收稿：2025-07-16，
  
  录用：2025-09-27，
  
  网络出版：2025-11-19，
  
  纸质出版：2025-12-15
- Accepted：
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Mei, G. T.; Huang, Y.; Zhang, J.; Liu, G. M. Effect of thickness on the pH responsiveness of strong polyelectrolyte brushes. Chinese J. Polym. Sci. 2025, 43, 2185–2190

Guang-Tao Mei, Yue Huang, Jian Zhang, et al. Effect of Thickness on the pH Responsiveness of Strong Polyelectrolyte Brushes[J]. Chinese Journal of Polymer Science, 2025, 43(12): 2185-2190.
Mei, G. T.; Huang, Y.; Zhang, J.; Liu, G. M. Effect of thickness on the pH responsiveness of strong polyelectrolyte brushes. Chinese J. Polym. Sci. 2025, 43, 2185–2190 DOI： 10.1007/s10118-025-3464-x.

Guang-Tao Mei, Yue Huang, Jian Zhang, et al. Effect of Thickness on the pH Responsiveness of Strong Polyelectrolyte Brushes[J]. Chinese Journal of Polymer Science, 2025, 43(12): 2185-2190. DOI： 10.1007/s10118-025-3464-x.

摘要

For strong polyelectrolyte brushes

the pH-responsive hydration and stiffness are dependent on brush thickness

and the pH-responsive adhesion and wettability are independent of brush thickness.

Abstract

Strong polyelectrolyte brushes (SPBs) play an important role in enabling material surface functionalization due to their unique stimuli-responsive properties. Although the unexpected pH responsiveness of SPBs has been revealed in the past ten years

it is still unclear if the pH-responsive properties of SPBs are affected by the brush thickness. In this study

we employed the positively charged poly[2-(methacryloyloxy)ethyl] trimethylammonium chloride (PMETAC) and negatively charged sodium poly(styrenesulfonate) (NaPSS) brushes as model systems to explore the effect of thickness on the pH-responsive properties of SPBs. The results demonstrate that the pH-responsive properties of SPBs manifest different dependences on the brush thickness. Specifically

for both PMETAC and NaPSS brushes

the pH-responsive hydration and stiffness are influenced by the thickness

and the pH-responsive wettability and adhesion are almost unaffected by the thickness. This work not only provides a clear understanding of the relationship between the brush thickness and the pH responsiveness of SPBs

but also offers a new method to control the pH-responsive properties of SPBs.

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references

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