An Underwater Self-Healing Polysulfide Elastomer with In-Situ Curing and Adhesion.

Shu-Yu Lu, Ruo-Yang Zhang, Wen-Tong Gao, Dashuai Zhang, Xiao-Peng Zhang, Cheng-Hui Li

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Article in Polymer science & technology (Washington, D.C.), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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6 authors.

Shu-Yu LuState Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China.

Ruo-Yang ZhangDepartment of Chemistry, Rice University, Houston, Texas 77005, United States.

Wen-Tong GaoSchool of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing 211167, China.ORCID https://orcid.org/0000-0002-5475-3767

Dashuai ZhangCollege of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, China.

Xiao-Peng ZhangCollege of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, China.ORCID https://orcid.org/0000-0003-4738-9925

Cheng-Hui LiState Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China.ORCID https://orcid.org/0000-0001-8982-5938

Funding

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6 · The paper itself

Abstract

As oceanic activities expand, the strategic importance of designing multifunctional materials suitable for underwater applications becomes increasingly apparent. Underwater self-healing materials offer significant advantages by autonomously repairing damage in-situ during operations, thereby minimizing resource waste and enhancing environmental sustainability. However, most self-healing materials do not have sufficient stability in aquatic environments due to the presence of water-sensitive weak cross-linking bonds. Herein, polysulfide elastomers capable of underwater self-healing have been developed through a straightforward, one-step thiol-ene click reaction strategy. This reaction can occur in-situ underwater due to its water insensitivity. The abundance of disulfide bonds in the elastomer enables the formation of coordination bonds with metals, endowing the material with outstanding underwater metal adhesion properties. The optimal elastomer LPTM-55 shows extraordinary toughness of 1.49 MJ/m

Indexed as

AdhesionDisulfide bondsIn-situ curingPolysulfideSelf-healing

Identifiers

PMID42256387

DOI10.1021/polymscitech.4c00022

PMCPMC13052585

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