Self-healing and chemically recyclable poly(disulfide)s for enhanced high-strain stress wave dissipation
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초록
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High-strain stress waves generated by high-energy events can threaten the safety of critical machinery and human lives, making it crucial to dissipate these waves efficiently. Conventional stress dissipation materials, such as polyurea, significantly lose their effectiveness after a single use due to structural changes. Poly(disulfide) derived from lipoic acid (LA) is a promising alternative for energy dissipation because the dynamic nature of disulfide bonds provides self-healing after damage and on-demand degradability. Here, we synthesize room-temperature self-healable and chemically recyclable poly(disulfide)s from LA and investigate their energy dissipation capabilities. A laser-induced shock wave technique is employed to generate high-strain stress waves, and the energy dissipation performance is evaluated based on the aliphatic chain length and the presence of hydrogen bonds in the side chain, as well as disulfide exchange kinetics.