Hierarchical Engineering of Amphiphilic Peptides Nanofibrous Crosslinkers toward Mechanically Robust, Functionally Customable, and Sustainable Supramolecular Hydrogels

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 20, 2025

Abstract Hierarchical architectures spanning multiple length scales are ubiquitous in biological tissues, conferring them with both mechanical robustness and dynamic functionalities via structural reorganization under loads. The design of hierarchical within synthetic hydrogels to concurrently achieve reinforcement functional integration remains challenging. Here, a biomimetic engineering approach is reported develop mechanically robust function‐customizable supramolecular by utilizing strong yet fibrous nanoarchitectures amphiphilic peptides as crosslinkers. This design, on one hand, resolves the strength‐toughness trade‐off hydrogel through energy‐dissipative mechanisms involving detachment reinsertion their assembled nanostructures upon loading. On other amphiphilicity sequence programmability allow spatially orthogonal across distinct domains, including lipophilic fluorophore encapsulation, photopatterning capability, anisotropic contraction. Capitalizing its ultralow hysteresis rapid recovery properties, hydrogel's effectiveness demonstrated high‐sensitivity strain sensors. Moreover, fully noncovalent crosslinking strategy permits closed‐loop recycling reprocessing reversible crosslinker disassembly‐reassembly processes. Through systematic extension this principle diverse peptide systems, generalized platform for creating advanced soft materials that synergistically integrate traditionally incompatible attributes robustness, customable functionality, environmental sustainability.

Язык: Английский

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Dynamic Cross-Linking Chemistry Enables Advanced One-Component Thermosets

Macromolecules, Год журнала: 2024, Номер 57(21), С. 9950 - 9959

Опубликована: Окт. 16, 2024

This work discloses a new strategy based on dynamic cross-linking chemistry to achieve advanced one-component thermosets combining ultralong storage life and fast cross-linking. One-component containing resin cross-linker in one pot have the features of simple operation, stable quality, low waste; however, an urgently needed with long at room temperature medium–low temperatures (≤130 °C) remains enormous challenge. Herein, we innovatively propose controlled dissolution address this issue. As example, cross-linked (DCC) is synthesized via Diels–Alder reaction hide high activity commercial amine-type cross-linker. A thermoset from DCC diepoxy monomer can be stored for time rapidly below 130 °C. Moreover, also serve as latent accelerator epoxy/anhydride same control system no elevated temperatures. beneficial promoting application meeting urgent need fields composites, coatings, electronic packaging materials, automotive adhesives, etc.

Язык: Английский

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Coordination-enhanced ionic elastomers: Durable, self-healing, and multimodal sensors for wearable electronics and robotics

Chemical Engineering Journal, Год журнала: 2024, Номер 503, С. 158415 - 158415

Опубликована: Дек. 9, 2024

Язык: Английский

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Development of Fluorenyl‐Based Copolyimines with Adjustable Mechanical Properties, Recyclability and Friction Resistance

Chemistry - A European Journal, Год журнала: 2024, Номер 30(43)

Опубликована: Июнь 4, 2024

Dynamic polyimines are a class of fascinating dynamic polymers with recyclability and reparability owing to their reversible Schiff-base reactions. However, balancing the properties mechanical strength presents major challenge due dissociative associative nature imine bonds. Herein, we introduced bulky fluorene groups polyether amine into skeleton polyimine networks achieve tradeoff in comprehensive properties. The resulting (Cardo-DPIs) were successfully synthesized by combining rigid diamine 9,9-bis(4-aminophenyl)fluorene flexible amine, demonstrating high tensile 64.7 MPa. Additionally, Cardo-DPIs films more content exhibited higher water resistance, glass transition temperature wear-resisting ability. Moreover, not only efficiently underwent thermal reshaping, but also excellent self-healing capabilities chemical degradation acidic solutions. Furthermore, can fully closed-loop recovery free solution for 2 h at room temperature. This study broadens scope materials promotes balanced development functional

Язык: Английский

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Mechanically Robust and Chemically Recyclable Poly(β-Amino Esters)-Based Thermosetting Plastics

ACS Applied Polymer Materials, Год журнала: 2024, Номер unknown

Опубликована: Окт. 25, 2024

Язык: Английский

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