Supramolecular Polymer‐Based Ionogels Enable Large‐Scale Fabrication of Stable Smart Windows with Room‐Temperature Closed‐Loop Recyclability and Self‐Healing Capability

Advanced Functional Materials, Год журнала: 2024, Номер 34(23)

Опубликована: Фев. 14, 2024

Abstract Current self‐healing ionogels are unable to undergo closed‐loop recycling and unsuitable for large‐scale fabrication, which increases their manufacturing costs limits practical applications. In this study, thermochromic with room‐temperature recyclability capability prepared by the in situ synthesis of imine bond cross‐linked supramolecular polymers binary ionic liquids. The resulting show excellent mechanical environmental stability, high solar modulation capability, long service life, can provide spontaneous buildings vehicles reduce cooling‐related energy consumption. temperature‐responsive hydrogen bonding between liquids influences dissolution state polymers, allowing switch transparent opaque states through reversible agglomeration ILs inside ionogels. Dynamic bonds enable spontaneously heal themselves at room temperature be depolymerized into monomers an extremely yield purity under hydrochloric acid catalysis temperature. recovered used re‐manufacture without losing original properties or capability. This study provides a new route developing functional that fabricated recycled.

Язык: Английский

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Metal‐Halogen Interactions Inducing Phase Separation for Self‐Healing and Tough Ionogels with Tunable Thermoelectric Performance

Advanced Materials, Год журнала: 2024, Номер 36(30)

Опубликована: Май 6, 2024

Abstract Ionic liquid‐based thermoelectric gels become a compelling candidate for power generation and sensing due to their giant thermopower, good thermal stability, high flexibility, low‐cost production. However, the materials reported date suffer from canonical trade‐offs between self‐healing ability, stretchability, strength, ionic conductivity. Herein, tough ionogel (PEO/LiTFSI/EmimCl) with tunable properties by tailoring metal‐halogen bonding interactions, is developed. Different affinities polymer matrix salts are exploited induce phase separation, resulting in simultaneous enhancement of conductivity mechanical strength. Molecular dynamics (MD) simulations spectroscopic analyses show that Cl − ions impair lithium‐ether oxygen coordination, leading changes chain conformation. The migration difference cations anions thus widened transition n‐type p‐type ionogels realized. Furthermore, dynamic interactions metal‐ligand coordination hydrogen yield autonomously capability, large stretchability (2000%), environment‐friendly recyclability. Benefiting these fascinating properties, multifunctional PEO‐based applied sensors, supercapacitors, modules. strategy tuning solvation dominance address optimize macroscopic offers new possibilities design advanced ionogels.

Язык: Английский

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Sea Cucumber‐Inspired Polyurethane Demonstrating Record‐Breaking Mechanical Properties in Room‐Temperature Self‐Healing Ionogels

Advanced Materials, Год журнала: 2024, Номер 36(44)

Опубликована: Сен. 12, 2024

Abstract Practical applications of existing self‐healing ionogels are often hindered by the trade‐off between their mechanical robustness, ionic conductivity, and temperature requirements for ability. Herein, this challenge is addressed drawing inspiration from sea cucumber. A polyurethane containing multiple hydrogen‐bond donors acceptors synthesized used to fabricate room‐temperature with excellent properties, high puncture resistance, impact resistance. The hard segments polyurethane, driven hydrogen bonds, coalesce into phase regions, which can efficiently dissipate energy through reversible disruption reformation bonds. Consequently, resulting exhibit record‐high tensile strength toughness compared other ionogels. Furthermore, inherent reversibility bonds within regions allows spontaneously self‐heal damaged properties conductivity times at room temperature. To underscore application potential, these employed as electrolytes in fabrication electrochromic devices, stable performance, repeatable healing ability, satisfactory This study presents a novel strategy exceptional capability.

Язык: Английский

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Strain/deformation-insensitive wearable rubber composite for temperature monitoring based on the photothermal and thermoelectric conversion

Chemical Engineering Journal, Год журнала: 2024, Номер 484, С. 149329 - 149329

Опубликована: Фев. 9, 2024

Язык: Английский

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Full‐Color “Off–On” Thermochromic Fluorescent Fibers for Customizable Smart Wearable Displays in Personal Health Monitoring

Small, Год журнала: 2024, Номер 20(29)

Опубликована: Фев. 16, 2024

Responsive thermochromic fiber materials capable of miniaturization and integrating comfortably compliantly onto the soft dynamically deforming human body are promising for visualized personal health monitoring. However, their development is hindered by monotonous colors, low-contrast color changes, poor reversibility. Herein, full-color "off-on" fluorescent fibers prepared based on self-crystallinity phase change Förster resonance energy transfer long-term passive body-temperature monitoring, especially various personalized customization purposes. The off-on switching luminescence characteristic derived from reversible conversion dispersion state emission fluorophores quencher molecules, which embedded in matrix a phase-change material, during crystallizing/melting processes. achievement fluorescence attributed to large modulation range colors according primary additive theory. These exhibit good mechanical properties, contrast, reversibility, showing great potential flexible smart display devices. Moreover, response temperature controllable adjusting enabling body-temperature-triggered luminescence; this property highlights monitoring customization. This work presents new strategy designing exploring sensors with higher comprehensive performances.

Язык: Английский

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Stretchable ionogels: Recent advances in design, toughening mechanisms, material properties and wearable devices applications

Chemical Engineering Journal, Год журнала: 2024, Номер 490, С. 151850 - 151850

Опубликована: Май 1, 2024

Язык: Английский

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Sweat-adaptive adhesive hydrogel electronics enabled by dynamic hydrogen bond networks

Chemical Engineering Journal, Год журнала: 2024, Номер 492, С. 152290 - 152290

Опубликована: Май 16, 2024

Язык: Английский

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High toughness and programmable strength in ion gels via hydrogen bond-induced microphase separation

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 159608 - 159608

Опубликована: Янв. 1, 2025

Язык: Английский

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Ionogel Adhesives: From Structural Design to Emerging Applications

Macromolecular Rapid Communications, Год журнала: 2025, Номер unknown

Опубликована: Фев. 14, 2025

Abstract Adhesives are indispensable in both daily household applications and advanced industrial settings, where they must deliver exceptional bonding performance. Ionogel adhesives, which feature a supporting polymer network infused with ionic liquid (IL), have emerged as promising candidates due to their unique structural functional properties. The presence of species within ionogels promotes non‐covalent interactions—such bonds, ion‐dipole interactions, hydrogen bonding—that enhance cohesion the material adhesion various substrates. These characteristics make ideal for that require robust adhesive performance, especially demanding environments. Despite growing interest ionogel comprehensive review latest advancements this area is lacking. This paper aims fill gap by categorizing adhesives based on composition discussing strategies Additionally, novel designed specific highlighted. Finally, current state research summarized, offers insights into challenges future opportunities development adhesives.

Язык: Английский

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Nanoscale control of morphologies enables robust and elastic ionogel for sensitive and high-resolution pressure sensing over wide linear range

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160913 - 160913

Опубликована: Фев. 1, 2025

Язык: Английский

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