

FOLLOWUS
a.Laboratory of Polymer Physics and Chemistry, Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
b.University of Chinese Academy of Sciences, Beijing 100049, China
jiadi11@iccas.ac.cn
Received:22 December 2025,
Accepted:14 January 2026,
Online First:12 May 2026,
Published:05 June 2026
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Jie, Y. S.; Jia, D. Advanced light scattering characterization and physics for functional polyelectrolyte gels. Chinese J. Polym. Sci. 2026, 44, 1578–1591
Yu-Sen Jie, Di Jia. Advanced Light Scattering Characterization and Physics for Functional Polyelectrolyte Gels[J]. Chinese Journal of Polymer Science, 2026, 44(6): 1578-1591.
Jie, Y. S.; Jia, D. Advanced light scattering characterization and physics for functional polyelectrolyte gels. Chinese J. Polym. Sci. 2026, 44, 1578–1591 DOI: 10.1007/s10118-026-3576-y.
Yu-Sen Jie, Di Jia. Advanced Light Scattering Characterization and Physics for Functional Polyelectrolyte Gels[J]. Chinese Journal of Polymer Science, 2026, 44(6): 1578-1591. DOI: 10.1007/s10118-026-3576-y.
Light scattering is a powerful technique for characterizing the elasticity
microstructures and dynamics of various functional hydrogels. The average bond binding energy and lifetime of the physical crosslinks in gel networks can also be extracted from dynamic light scattering characterization results.
Functional gels exhibit unique properties that can be tuned by regulating their physical interactions and microstructures. However
quantifying the strength and fraction of these physical interactions and how they result in large-scale collective dynamical properties remains a significant challenge. From this perspective
we briefly review the theories and characterization method of light scattering on polyelectrolyte gels
with an emphasis on summarizing our efforts. In particular
we introduce our most recent work on an entirely new universality class of hierarchical gel dynamics for various types of physical gels
which is complementary to the light scattering studies on chemically crosslinked gels in the past five decades. By utilizing the hierarchical gel dynamics
we are able to extract the average bond binding energy of various physical bonds and the physical crosslinking density in the gels. Finally
we evaluated the advantages and limitations of the light scattering method and discussed the future perspectives in this field. It is anticipated that this perspective will facilitate the broad application of light scattering technique in the field of functional gels.
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