Side chain engineering of poly(disulfide)s for efficient shockwave energy dissipation
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Shockwave is a powerful and nonlinear acoustic pressure wave generated by high-energy explosion. Its potential to cause severe damage from buildings to human organs emphasizes the importance of shockwave energy dissipation (SWED) materials. Herein, we synthesized several lipoic acid derivatives by altering the chemical structures of side chains and prepared linear polymers through photo-polymerization. We investigated the thermal, mechanical, and structural analysis of each polymer and correlated these characteristics with SWED properties. Furthermore, we confirmed the possibility of self-repairing in regions damaged by shockwaves through the dynamic exchange of disulfide bonds and utilized the chain back-biting phenomenon of dithiolane for closed-loop chemical recycling.