

FOLLOWUS
a.Key Laboratory of the Preparation and Application of Environmentally Friendly Functional Materials (Huaihua University), College of Hunan Province/Hunan Engineering Research Center for Recycled Aluminum, Huaihua University, Huaihua 418000, China
b.Institute of Applied Chemistry, Precise Synthesis and Function Development Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637009, China
c.SILKROAD Research Center of Sustainable Energy Conversion and Utilization, Southwest Petroleum University & Iraq's Ministry of Oil, 10085 Baghdad, Governorate, Iraq
d.School of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
e.Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science & Engineering, Zigong 643000, China
oyyj0816@163.com (Y.J.O.)
zhxie@cwnu.edu.cn (Z.H.X.)
Received:13 July 2026,
Accepted:15 August 2026,
Online First:22 October 2026,
Published:2026-10
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Yong, Q. W.; Jiang, Q.; Khalaf, A. H.; Xu, D.; Ouyang, Y. J.; Feng, Z. Y.; Zeng, X. G.; Pu, D. M.; Hu, X. Q.; Xie, Z. H. Synergistic integration of chemically homologous core-shell nanocontainers and dynamic disulfide-crosslinked epoxy networks for multilevel corrosion protection of magnesium alloys. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3849-5
Qi-Wen Yong, Qian Jiang, Ali Hussein Khalaf, et al. Synergistic Integration of Chemically Homologous Core-Shell Nanocontainers and Dynamic Disulfide-crosslinked Epoxy Networks for Multilevel Corrosion Protection of Magnesium Alloys[J/OL]. Chinese Journal of Polymer Science, 2026, 441-15.
Yong, Q. W.; Jiang, Q.; Khalaf, A. H.; Xu, D.; Ouyang, Y. J.; Feng, Z. Y.; Zeng, X. G.; Pu, D. M.; Hu, X. Q.; Xie, Z. H. Synergistic integration of chemically homologous core-shell nanocontainers and dynamic disulfide-crosslinked epoxy networks for multilevel corrosion protection of magnesium alloys. Chinese J. Polym. Sci. https://doi.org/10.1007/s10118-026-3849-5 DOI:
Qi-Wen Yong, Qian Jiang, Ali Hussein Khalaf, et al. Synergistic Integration of Chemically Homologous Core-Shell Nanocontainers and Dynamic Disulfide-crosslinked Epoxy Networks for Multilevel Corrosion Protection of Magnesium Alloys[J/OL]. Chinese Journal of Polymer Science, 2026, 441-15. DOI: 10.1007/s10118-026-3849-5.
A multifunctional anticorrosion coating integrating a dynamic epoxy–poly(thioctic acid) (EP–PTA) network with chemically homologous core-shell nanocontainers was developed for magnesium alloy protection. The E
P–PTA matrix was constructed
via
covalent coupling between epoxy groups and PTA carboxyl functionalities
forming a dense crosslinked network enriched with reversible disulfide bonds
enabling rapid intrinsic self-healing at 80 °C within 30 min. (2-(3
4-Difluorophenyl)hydrazineylidene)indolin-2-one (PHIO)-loaded zeolitic imidazolate framework-8 (ZIF-8) nanocontainers encapsulated by a poly(sodium thioctate) (PST) shell (PZS
299.15 nm) were uniformly dispersed throughout the matrix owing to strong chemical homology
enabling pH-responsive framework degradation of ZIF-8 accompanied by a coordination-driven Mg
2+
–PHIO complex. Electrochemical impedance spectroscopy revealed that the PZS/EP–PTA coating maintained a low-frequency impedance modulus of 1.28×10
9
Ω·cm
2
after 28 days of immersion in a 3.5 wt% NaCl solution
which is approximately three orders of magnitude higher than that of pristine epoxy. This superior performance originates from the synergistic integration of the nanocontainer-enhanced physical barrier
disulfide-bond-mediated dynamic network repair
and pH-triggered PHIO release with interfacial deposition. This work provides a unified design strategy that couples dynamic covalent polymer networks with chemically compatible nanocontainer systems for the durable corrosion protection of magnesium alloys.
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