Ultra-stretchable ionic nanocomposites: from dynamic bonding to multi-responsive behavior

Odent, Jérémy; Raquez, Jean-Marie; Dubois, Philippe; Giannelis, Emmanuel P.

doi:10.1039/c7ta04101b

Cited by 33 publications

(82 citation statements)

References 61 publications

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“…Microscopic images of the nanocomposites immediately after a scratch damage was inferred (a); and after being held at 50 • C for 1 h (b); 2 h (c); 3 h (d); 4 h (e) and 5 h (f); demonstrating the self-healing behavior. Cyclic stress-controlled thermomechanical test of the nanocomposite showing reversible plasticity/shape-memory (g) [156] (Reprinted from Ref. [156] with permission of The Royal Society of Chemistry.…”

Section: Discussionmentioning

confidence: 99%

“…Cyclic stress-controlled thermomechanical test of the nanocomposite showing reversible plasticity/shape-memory (g) [156] (Reprinted from Ref. [156] with permission of The Royal Society of Chemistry. ).…”

Section: Discussionmentioning

confidence: 99%

“…The dynamic and reversible nature of the ionic crosslinks within the nanocomposites inflicts remarkable reversible plasticity/shape-recovery. This gives the nanocomposites a unique strain-dependent behavior, where the deformation increases with increasing strain rate, and return to the normal state after deformation, including both shape-memory and self-healing properties [156] (Figure 11). …”

Section: Il-based Self-healing Materialsmentioning

confidence: 99%

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Recent Applications of Ionic Liquids in the Sol-Gel Process for Polymer–Silica Nanocomposites with Ionic Interfaces

Donato

Matějka

Mauler

et al. 2017

Colloids and Interfaces

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Abstract:Understanding the organic-inorganic interphases of hybrid materials allows structure and properties control for obtaining new advanced materials. Lately, the use of ionic liquids (ILs) and poly(ionic liquids) (PILs) allowed structure control from the first sol-gel reaction steps due to their anisotropy and multiple bonding capacity. They also act as multifunctional compatibilizing agents that affect the interfacial interactions in a molecular structure-dependent manner. Thus, this review will explore the concepts and latest efforts to control silica morphology using processes such as the sol-gel, both in situ and ex situ of polymer matrices, pre-polymers or polymer precursors. It discusses how to control the polymer-filler interphase bonding, highlighting the last achievements in the interphase ionicity control and, consequently, how these affect the final nanocomposites providing materials with barrier, shape-memory and self-healing properties.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Il-based Self-healing Materialsmentioning

confidence: 99%

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Recent Applications of Ionic Liquids in the Sol-Gel Process for Polymer–Silica Nanocomposites with Ionic Interfaces

Donato

Matějka

Mauler

et al. 2017

Colloids and Interfaces

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“…One way to provide NP dispersion is to let the interaction between NPs and chains to be of an ionic nature [18][19][20]. The presence of oppositely charged ions at the polymer/nanofiller interphase can promote dispersion [21][22][23][24][25]. This relatively new class of ionic nanocomposites combines filler reinforcement with the reversibility of ionic interactions [23].…”

Section: Introductionmentioning

confidence: 99%

“…This relatively new class of ionic nanocomposites combines filler reinforcement with the reversibility of ionic interactions [23]. Despite the improved mechanical performance, the reversible feature of ionic bonds, that can break and reform under certain conditions [21], has led to smart materials for self-healing [25,26], shape-memory [21,22], piezoelectric [27], and mechanochromic [28] applications due to their ability to respond directly under a certain chemical or physical stimulus. For instance, nanocomposites based on imidazolium-functionalized polyurethane and surface-modified sulfonate silica (SiO 2 ) NPs have revealed not only unprecedented mechanical properties with simultaneous improvements in stiffness, toughness and extensibility but also a scratch recovery ability [21].…”

Section: Introductionmentioning

confidence: 99%

Polymer Conformations, Entanglements and Dynamics in Ionic Nanocomposites: A Molecular Dynamics Study

et al. 2020

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We investigate nanoparticle (NP) dispersion, polymer conformations, entanglements and dynamics in ionic nanocomposites. To this end, we study nanocomposite systems with various spherical NP loadings, three different molecular weights, two different Bjerrum lengths, and two types of charge-sequenced polymers by means of molecular dynamics simulations. NP dispersion can be achieved in either oligomeric or entangled polymeric matrices due to the presence of electrostatic interactions. We show that the overall conformations of ionic oligomer chains, as characterized by their radii of gyration, are affected by the presence and the amount of charged NPs, while the dimensions of charged entangled polymers remain unperturbed. Both the dynamical behavior of polymers and NPs, and the lifetime and amount of temporary crosslinks, are found to depend on the ratio between the Bjerrum length and characteristic distance between charged monomers. Polymer–polymer entanglements start to decrease beyond a certain NP loading. The dynamics of ionic NPs and polymers is very different compared with their non-ionic counterparts. Specifically, ionic NP dynamics is getting enhanced in entangled matrices and also accelerates with the increase of NP loading.

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Interface Design for Stretchable Electronic Devices

2021

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Stretchable electronics has emerged over the past decade and is now expected to bring form factor-free innovation in the next-generation electronic devices. Stretchable devices have evolved with the synthesis of new soft materials and new device architectures that require significant deformability while maintaining the high device performance of the conventional rigid devices. As the mismatch in the mechanical stiffness between materials, layers, and device units is the major challenge for stretchable electronics, interface control in varying scales determines the device characteristics and the level of stretchability. This article reviews the recent advances in interface control for stretchable electronic devices. It summarizes the design principles and covers the representative approaches for solving the technological issues related to interfaces at different scales: i) nano-and microscale interfaces between materials, ii) mesoscale interfaces between layers or microstructures, and iii) macroscale interfaces between unit devices, substrates, or electrical connections. The last section discusses the current issues and future challenges of the interfaces for stretchable devices.

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Ultra-stretchable ionic nanocomposites: from dynamic bonding to multi-responsive behavior

Abstract: We demonstrate a novel family of multi-responsive materials, i.e. nanocomposites built on ionic interactions, that combine enhanced mechanical performances and reversibility endowed to dynamic systems.

Cited by 33 publications

References 61 publications

Recent Applications of Ionic Liquids in the Sol-Gel Process for Polymer–Silica Nanocomposites with Ionic Interfaces

Recent Applications of Ionic Liquids in the Sol-Gel Process for Polymer–Silica Nanocomposites with Ionic Interfaces

Polymer Conformations, Entanglements and Dynamics in Ionic Nanocomposites: A Molecular Dynamics Study

Interface Design for Stretchable Electronic Devices

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