Self-reporting of damage in underwater hierarchical ionic skinsviacascade reaction-regulated chemiluminescence

Abstract

Self-reporting of damage in underwater materials allows on-demand maintenance and, therefore, improves the reliability of materials used in aquatic environments. Here, we report a chemiluminescence-based strategy to self-report the mechanical...

Glow Stick‐Inspired Multilayered Composites with Damage Self‐Reporting and Self‐Healing Properties for Aquatic Environments

“…In a previous study, we fabricated ionic skins with an asymmetrical four‐layered structure, and the damage‐reporting properties for the two sides of the materials were different. [ 19 ] To overcome this problem, we herein constructed a hierarchical composite material with a symmetrical five‐layered structure, which played an important role in sensing the mechanical damage ( Figure a). Table S1, Supporting Information, outlines the compositions of the prepared composites in this article.…”

“…[16,17] Recently, the self-healing materials under harsh aquatic conditions such as seawater, highly acidic media, and highly alkaline solution have been fabricated by incorporating dipole-dipole and ion-dipole interactions into polymers. [18][19][20][21] This is of great importance for the materials used in marine environments.…”

“…We recently designed a conductive material which could report the mechanical damages through optical and electrical signals. [ 19 ] In contrast to electronic signals, optical signals offer an economical approach to report damage and are more suitable for insulating materials. To achieve the self‐reporting strategies based on optical signals, various materials and mechanisms have been reported.…”

Transient regulation of gel properties by chemical reaction networks

“…For example, our research group previously fabricated an underwater ionogel capable of reporting mechanical damage, and the ionogel exhibited the self-reporting function through a damage-induced cascade reaction. 45 In recent years, many excellent works about gels with transiently regulatable properties have been reported. 39,[46][47][48] The rapid development of this field has made the need for upto-date summaries in this area urgent.…”

Versatile Light-Mediated Synthesis of Dry Ion-Conducting Dynamic Bottlebrush Networks with High Elasticity, Interfacial Adhesiveness, and Flame Retardancy

“…Based on our previous work, we know that the ionic conductivity of ionic conductors is closely related to the species and concentration of free ions. , Ionic conductivity (σ) can be calculated by eq : , σ = prefix∑ p i q i μ i where p i is the free ion concentration, q i is the ionic charge, μ i is the ionic mobility, and the total ionic conductivity is equal to the sum of the ionic conductivity of all ionic species. Ionic conductivity can be improved by increasing ionic mobility in a stationary system, and it can be calculated according to the Einstein relation (eq ): , μ i = q i D i k normalB T where D i , k B , and T are the ionic diffusion coefficient, Boltzmann constant, and temperature, respectively.…”