Toughening a Self‐Healable Supramolecular Polymer by Ionic Cluster‐Enhanced Iron‐Carboxylate Complexes

Deng, Yuanxin; Zhang, Qi; Feringa, Ben L.; Tian, He; Qu, Da‐Hui

doi:10.1002/ange.201913893

Cited by 69 publications

(59 citation statements)

References 64 publications

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“…38 Compared with conventional adhesives consisting of covalent polymeric networks, supramolecular adhesives exhibit unique advantages for their reversible interactions in response to external stimuli. 39,40 Manifold advantages, including responsiveness, reversibility, and recyclability, endow supramolecular adhesives with a wide scope of applications covering the fields of biomedical materials, for example, wound dressing, tissue repair, and drug delivery; 41,42 high-performance electronics, for example, flexible electronic screens, wearable devices, and soft actuators; 43,44 and transportation and aerospace systems. Back in 1997, the exploration of supramolecular polymer adhesive was pioneered by Stupp et al, 45 after which a series of fundamental research and functional applications of supramolecular adhesive materials have evolved.…”

Section: Introductionmentioning

confidence: 99%

Supramolecular adhesive materials from small‐molecule self‐assembly

et al. 2020

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Developing high-performance adhesive materials not only aims at industrial and social requirements but also bears the fundamental importance of understanding the chemical factors of biological adhesion to develop biomimetic adhesive materials. Owing to the wide development of supramolecular chemistry, numerous supramolecular tools are exploited and proved to be reliable in the replacement of traditional covalent materials by reversible noncovalent or dynamic covalent materials. Taking advantage of these readyto-use supramolecular toolboxes, supramolecular adhesive materials are rising and promising toward "smart" adhesives, that is, enabling responsiveness, reversibility, and recyclability. Compared with polymeric adhesive materials, low-molecular-weight adhesives feature chemically precise structure, easier engineering by molecular design, and hence higher reproducibility. However, it remains highly challenging to make high-performance adhesive materials by low-molecular-weight feedstocks. This review will focus on the recent advancement in the construction of supramolecular adhesive materials by smallmolecule self-assembly. The design guidelines and consideration on the molecular scale will be discussed and summarized on how to enhance the strength of adhesives. Meanwhile, owing to the dynamic nature of supramolecular self-assembly, several "smart" functions of such materials will be presented, such as stimuli-responsiveness and adaptiveness. Finally, current challenges and future perspectives of this emerging field will be proposed.

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Section: Introductionmentioning

confidence: 99%

Supramolecular adhesive materials from small‐molecule self‐assembly

et al. 2020

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“…In addition, notable sharp diffraction peaks observed in the sample, pointing to the formation of metal ionic clusters by Coulombic force. The literature shows that the formation of ionic clusters in the polymer network can lead to internal order at the nanoscale, 41 which helps to improve the mechanical properties of PET.…”

Section: Resultsmentioning

confidence: 99%

Research on synthesis and thermal properties of poly(ethylene terephthalate) sulfonate group containing ionomer

Yin

Jiang

Lian

2020

J of Applied Polymer Sci

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In order to solve the poor nucleation ability and slow crystallization rate of polyethylene terephthalate (PET), we propose a new strategy to prepare PET with self-nucleation ability based on the mechanism of mutual attraction of ions. In this study, a hydroxyl-terminated sulfonate monomer, sulfonated 1,4-butanediol (SBDO) without rigid structure was synthesized as nucleating agent functionalized PET third monomer, and then PET ionomers (PETi) were prepared through melt polycondensation with different contents of SBDO. The half-crystallization time of PETi was sharply decreased in contrast with pure PET and the crystallization temperature was significantly increased from 182.6 C to 210.8 C for PETi1. Due to the high nucleation efficiency of SBDO, the crystallization temperature of PET was significantly increased, avoiding the excessive addition of traditional nucleating agents to deteriorate the mechanical properties of PET. The increased nucleation efficiency was contributed to the aggregation of SBDO induced by the ionic interactions.

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“…The PANa 0.8 Fe y with more than 1.5 mol % Fe 3 + shows decreased storage modulus, due to the compact coil states of polyacrylate with large amounts of Fe 3 + . [63,64] It seems that the mechanical enhancement by crosslinking is made only if the homogeneity of the Fe 3 + -carboxylate coordination is guaranteed. The storage moduli of all the solutions are dominant over the loss moduli, hence, the values of loss tangent are below 1.0 over the entire frequency region ( Figure S5).…”

Section: Characterization Of Ionically Crosslinked Polyacrylatementioning

confidence: 99%

Metal‐Coordination Mediated Polyacrylate for High Performance Silicon Microparticle Anode

Woo

Gil

Kim

et al. 2020

Batteries & Supercaps

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As opposed to nano-Si anodes, Si-microparticle (Si-MP)-based negative electrode is still in an immature stage due to the fragility of particles of which dimension is farther from the critical size of Si. In terms of binder chemistry, the established strategies for nano-Si anode can be moderately transferred to designing functional binders for commercially available Si-MP. However, only a few studies have reported acceptable electrochemical properties of Si-MP in the level of designing novelbinder systems. Herein, the ionically crosslinked polyacrylate (PANa 0.8 Fe y) inspired by metallo-supramolecular polymers is introduced as a binder for Si-MP anode. Although cracking of Si-MP is inevitable during cycles, the electrode components can effectively be confined within the supramolecular network, which reversibly adjusts its architecture via iron (Fe 3 +)-carboxylate coordination. With appropriate compositions, the incorporation of ferric ion to sodium polyacrylate allows the Si-MP to exhibit an excellent round-trip capacity of~1400 mAh g À 1 after 400 cycles. The resulting electrochemical performance is demonstrated by several correlated factors: (i) type of supramolecular interactions, (ii) effect of cations (Na + /Fe 3 +) on the conformation of polymer, and (iii) mechanical properties of the electrode.

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Toughening a Self‐Healable Supramolecular Polymer by Ionic Cluster‐Enhanced Iron‐Carboxylate Complexes

Cited by 69 publications

References 64 publications

Supramolecular adhesive materials from small‐molecule self‐assembly

Supramolecular adhesive materials from small‐molecule self‐assembly

Research on synthesis and thermal properties of poly(ethylene terephthalate) sulfonate group containing ionomer

Metal‐Coordination Mediated Polyacrylate for High Performance Silicon Microparticle Anode

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