A robust and self-healing elastomer achieved by a thio-β-diketone-Cu(<scp>ii</scp>) coordination and H-bonding dual crosslinked system

An, X.L; Liu, Jie; Zhang, Jia‐Han; Huang, Xinxin; Zhu, Tangsong; Yan, Hongping; Jia, Xudong; Zhang, Qiuhong

doi:10.1039/d2qm00259k

Cited by 10 publications

(7 citation statements)

References 64 publications

(65 reference statements)

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“…The mechanical parameters of these elastomers prepared by this strategy outperform those of most existing coordination-based elastomers developed by other approaches (Figure 3g and Table S4, Supporting Information). [27,[41][42][43][44][45] More importantly, these elastomers are fabricated using a very simple and fast one-pot synthesis without diffusion or crosslinking of metal ions, and using only water as solvents. Thus, the approach developed here shows remarkable advantages in terms of operability and environmental friendliness.…”

Section: Mechanical Properties Of the Elastomersmentioning

confidence: 99%

A Facile Strategy to Fabricate Tough and Adhesive Elastomers by In Situ Formation of Coordination Complexes as Physical Crosslinks

Hu,

Jiao,

Hao

et al. 2023

Adv Funct Materials

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Coordination bonds with a dynamic nature and wide‐spectrum bond energy have gained great popularity in use for fabricating tough soft materials. However, most existing coordination‐based elastomers are prepared through complicated procedures, usually involving elaborate synthesis of ligand‐containing monomers or polymers, ion diffusion to form coordination complexes, and removal of organic solvent during the synthesis, which are neither easy operation nor environmentally friendly. Here, a facile and effective strategy is demonstrated to fabricate tough metallosupramolecular elastomers by one‐pot polymerization of aqueous precursor solutions containing commercial agents, 2‐acrylamido‐2‐methyl‐1‐propanesulfonic acid, 2‐[2‐(2‐methoxyethoxy)ethoxy]ethyl acrylate, and Zr4+ ions. After solvent (i.e. water) evaporation, the obtained elastomers are transparent and extremely tough owing to the presence of sulfonate‐Zr4+ coordination complexes as physical crosslinks. Their mechanical properties are tunable over a wide spectrum by adjusting the composition of copolymers and the density of coordination bonds. This eco‐friendly strategy is further extended to various commercial monomers, manifesting good universality to toughen elastomers. Furthermore, the abundant functional groups of copolymers make the elastomers adhesive to various substrates including themselves, favoring applications such as interfacial adhesion and encapsulations. The easy fabrication, tunable mechanical properties, and adhesion ability endow the elastomers with great potential as the substrate of wearable soft electronics.

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Section: Mechanical Properties Of the Elastomersmentioning

confidence: 99%

A Facile Strategy to Fabricate Tough and Adhesive Elastomers by In Situ Formation of Coordination Complexes as Physical Crosslinks

Hu,

Jiao,

Hao

et al. 2023

Adv Funct Materials

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“…The most common non-covalent interaction is H-bonding, which can be combined with other interactions including ionic interactions [117], coordination bonding [118,119], hostguest interactions [120], and other intermolecular forces to design self-healing elastomers with various properties.…”

Section: Multiple Non-covalent Interactionsmentioning

confidence: 99%

Recent Progress in the Field of Intrinsic Self-Healing Elastomers

Yang,

Wu,

et al. 2023

Polymers

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Self-healing elastomers refer to a class of synthetic polymers that possess the unique ability to autonomously repair from internal and external damages. In recent years, significant progress has been made in the field of self-healing elastomers. In particular, intrinsic self-healing elastomers have garnered a great deal of attention. This mini-review outlines recent advancements in the mechanisms, preparation methods, and properties of various intrinsic self-healing elastomers based on non-covalent bond systems, reversible covalent bond systems, and multiple dynamic bond composite systems. We hope that this review will prove valuable to researchers in order to facilitate the development of novel strategies and technologies for preparing high-performance self-healing elastomers for advanced applications.

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“…Wang et al [21] made roomtemperature self-healing antimicrobial silicone elastomer by the coordinated action of dynamic disulfide bonding and silver ion coordination bonding. An et al [22] reported an elastomer consisting of a substituted-𝛽-like to-Cu 2+ metal-ligand (M-L) ligand with coordinated hydrogen bonding. Cai and his colleagues [23] prepared a poly(ureacarbamate) elastomer (PIDA) that could be rapidly self-healed at room temperature and thermally recycled.…”

Section: Doi: 101002/marc202200681mentioning

confidence: 99%

“…An et al. [ 22 ] reported an elastomer consisting of a substituted‐ β ‐like to‐Cu 2+ metal–ligand (M–L) ligand with coordinated hydrogen bonding. Cai and his colleagues [ 23 ] prepared a poly(urea‐carbamate) elastomer (PIDA) that could be rapidly self‐healed at room temperature and thermally recycled.…”

Section: Introductionmentioning

confidence: 99%

Tannic Acid Crosslinked Self‐Healing and Reprocessable Silicone Elastomers with Improved Antibacterial and Flame Retardant Properties

Jiao

Rong

Gao

et al. 2022

Macromol. Rapid Commun.

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Silicone elastomers are widely used in aviation, electronics, automotive, and medical device fields, and their overuse inevitably causes recycled problems. In addition, the elastomers are subject to attack by bacteria and fire during use in some application scenarios, which is a safety hazard. Therefore, there is a great need to prepare silicone elastomers with improved antibacterial, flame retardant, self-healing, and recyclable functions. A new strategy is proposed to prepare silicone elastomers with bio-based tannic acid as cross-linkers to solve this problem by using polydimethylsiloxane as a soft chain segment and 2,2-bis(hydroxymethyl)propionic acid as an intermediate chain extender. Based on the phenol carbamate bonding and hydrogen bonding interactions, the elastomer has efficient self-healing ability and can achieve dynamic dissociation at 120 °C for complete recovery. In addition, due to the unique spatial structure and polyphenolic hydroxyl groups of tannic acid, the mechanical properties of the elastomer are greatly improved with an antimicrobial efficiency of over 90% and a final oxygen index of 25.5%. The multifunctional silicone elastomer has great potential applications in recyclable refractory materials and antimicrobial materials.

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A robust and self-healing elastomer achieved by a thio-β-diketone-Cu(ii) coordination and H-bonding dual crosslinked system

Abstract: Elastomers possessing good mechanical strength and self-healing capability are showing great importance in stretchable electronics, since they can play the role as robust substrates for devices, and prolong the service...

Cited by 10 publications

References 64 publications

A Facile Strategy to Fabricate Tough and Adhesive Elastomers by In Situ Formation of Coordination Complexes as Physical Crosslinks

A Facile Strategy to Fabricate Tough and Adhesive Elastomers by In Situ Formation of Coordination Complexes as Physical Crosslinks

Recent Progress in the Field of Intrinsic Self-Healing Elastomers

Tannic Acid Crosslinked Self‐Healing and Reprocessable Silicone Elastomers with Improved Antibacterial and Flame Retardant Properties

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