Autonomic Self-Healing of Polymers: Mechanisms, Applications, and Challenges

Molecules, Journal Year: 2025, Volume and Issue: 30(3), P. 469 - 469

Published: Jan. 22, 2025

Mechanical loads degrade polymers by enabling mechanochemical fragmentation of macromolecular backbones. In most polymers, this is irreversible, and its accumulation leads to the appearance propagation cracks and, ultimately, fracture material. Self-healing describes a diverse loosely defined collection approaches that aim at reversing damage. Most reported synthetic self-healing are non-autonomic, i.e., they require user input free energy (in form heat, irradiation, or reagents) into damaged material initiate repair. Here, we critically discuss emerging chemical autonomic rely on regenerating density load-bearing, dissociatively-inert backbone bonds either after load partially dissipated continuously in competition with mechanochemically driven loss backbones loaded We group chemistries three broad types whose analysis yields set criteria against which potential prospective approach yield practically relevant can be assessed quantitatively. Our suggests direct chain-to-chain addition mechanically unsaturated polyolefins promising strategy date achieve synchronous practical significance.

Language: Английский

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A burst of light for mechanochemistry

Nature Synthesis, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 22, 2024

Language: Английский

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