Mechanics of elastomeric molecular composites

Published on Sep 11, 2018in Proceedings of the National Academy of Sciences of the United States of America11.205
· DOI :10.1073/PNAS.1807750115
Pierre Millereau2
Estimated H-index: 2
(CNRS: Centre national de la recherche scientifique),
Etienne Ducrot11
Estimated H-index: 11
(CNRS: Centre national de la recherche scientifique)
+ 4 AuthorsCostantino Creton67
Estimated H-index: 67
(Hokkaido University)
Sources
Abstract
A classic paradigm of soft and extensible polymer materials is the difficulty of combining reversible elasticity with high fracture toughness, in particular for moduli above 1 MPa. Our recent discovery of multiple network acrylic elastomers opened a pathway to obtain precisely such a combination. We show here that they can be seen as true molecular composites with a well–cross-linked network acting as a percolating filler embedded in an extensible matrix, so that the stress–strain curves of a family of molecular composite materials made with different volume fractions of the same cross-linked network can be renormalized into a master curve. For low volume fractions (
📖 Papers frequently viewed together
201447.73Science
20103.68Soft Matter
1 Author (Jian Ping Gong)
References38
Newest
#1Mattia Bacca (UBC: University of British Columbia)H-Index: 10
#2Costantino Creton (ParisTech)H-Index: 67
Last. Robert M. McMeeking (UCSB: University of California, Santa Barbara)H-Index: 81
view all 3 authors...
Source
Soft polymer networks have seen an explosion of recent developments motivated by new high tech applications in the biomedical field or in engineering. We present a candid and critical overview of the current understanding of the relation between the structure and molecular architecture of polymer networks and their mechanical properties, restricting ourselves to soft networks made of flexible polymers and displaying entropic elasticity. We specifically review and compare recent approaches to syn...
Source
#1JM Jessica Clough (TU/e: Eindhoven University of Technology)H-Index: 8
#2Costantino Creton (ESPCI ParisTech)H-Index: 67
Last. Rint P. Sijbesma (TU/e: Eindhoven University of Technology)H-Index: 79
view all 4 authors...
Strain-induced light emission from mechanoluminescent cross-linkers in silica-filled poly(dimethylsiloxane) demonstrates that covalent bond scission contributes significantly to irreversible stress-softening upon the initial extension, known as the Mullins effect. The cross-linkers contain dioxetanes that emit light upon force-induced bond scission. The filled elastomer emits light in cyclic uniaxial tension, but only on exceeding the previous maximum strain. The amount of light increases with h...
Source
#1Nicholas BallardH-Index: 23
Last. José M. AsuaH-Index: 60
view all 3 authors...
Transfer to polymer in the radical polymerization of acrylic monomers results in chain branching and has significant implications for both reaction kinetics and the microstructure of the resulting polymer. While intramolecular transfer to polymer is more prevalent than the intermolecular pathway, intermolecular transfer to polymer is of particular importance for understanding polymer microstructures. Despite this, the magnitude of the rate coefficient is uncertain, and therefore, predicting the ...
Source
#1Etienne Ducrot (PSL Research University)H-Index: 11
#2Costantino Creton (PSL Research University)H-Index: 67
Here, the general design and properties of new multiple network elastomers with an exceptional combination of stiffness, toughness, and elasticity are reported. In this paper, it is reported in more detail how the increase in strain at break resulting from the toughening can be used to provide great insight in the large strain properties of otherwise brittle acrylic well crosslinked networks. The networks have been prepared by sequences of polymerization and swelling with monomers. The parameter...
Source
#1Costantino Creton (ESPCI ParisTech)H-Index: 67
#2Matteo Ciccotti (ESPCI ParisTech)H-Index: 25
Soft materials are materials with a low shear modulus relative to their bulk modulus and where elastic restoring forces are mainly of entropic origin. A sparse population of strong bonds connects molecules together and prevents macroscopic flow. In this review we discuss the current state of the art on how these soft materials break and detach from solid surfaces. We focus on how stresses and strains are localized near the fracture plane and how elastic energy can flow from the bulk of the mater...
Source
#1Takahiro MatsudaH-Index: 8
#2Tasuku NakajimaH-Index: 37
Last. Jian Ping GongH-Index: 81
view all 8 authors...
Double network (DN) gels, consisting of a brittle first and flexible second network, have been known to be extremely tough and functional hydrogels. In a DN gel subjected to force, the brittle first network breaks prior to the fracture of the flexible network. This process, referred to as internal fracture, dissipates energy and increases the energy required to completely fracture DN gels. Such internal fracture macroscopically appears as a yielding-like phenomenon. The aim of this paper is to i...
Source
#1Etienne DucrotH-Index: 11
#2Hélène MontesH-Index: 16
Last. Costantino CretonH-Index: 67
view all 3 authors...
The chain conformation of model interpenetrated network elastomers was studied by small angle neutron scattering. Model double networks (DN) were made by first polymerizing and cross-linking partially deuterated ethyl acrylate in the presence of toluene, then by swelling these networks with either ethyl or methyl acrylate monomers subsequently polymerized. Model triple networks (TN) were made by repeating these swelling/polymerization steps one more time. The samples were then placed in the neut...
Source
#1Federico Carpi (QMUL: Queen Mary University of London)H-Index: 35
#2Iain A. Anderson (University of Auckland)H-Index: 32
Last. Herbert Shea (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 55
view all 22 authors...
Dielectric elastomer transducers consist of thin electrically insulating elastomeric membranes coated on both sides with compliant electrodes. They are a promising electromechanically active polymer technology that may be used for actuators, strain sensors, and electrical generators that harvest mechanical energy. The rapid development of this field calls for the first standards, collecting guidelines on how to assess and compare the performance of materials and devices. This paper addresses thi...
Source
#1Ivan R. Minev (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 15
#2Pavel Musienko (MIND Institute)H-Index: 25
Last. Stéphanie P. Lacour (EPFL: École Polytechnique Fédérale de Lausanne)H-Index: 45
view all 21 authors...
The mechanical mismatch between soft neural tissues and stiff neural implants hinders the long-term performance of implantable neuroprostheses. Here, we designed and fabricated soft neural implants with the shape and elasticity of dura mater, the protective membrane of the brain and spinal cord. The electronic dura mater, which we call e-dura, embeds interconnects, electrodes, and chemotrodes that sustain millions of mechanical stretch cycles, electrical stimulation pulses, and chemical injectio...
Source
Cited By40
Newest
#5Qiang Zhang (PKU: Peking University)H-Index: 16
Abstract null null Natural tissues possess the self-strengthening ability through biological growth, during which additional building blocks are transported into the tissues and attached to the pre-existing null microstructures null . In contrast, synthetic materials are typically static, meaning neither their dimensions nor their mechanical properties are able to be altered after the materials are manufactured into specific structures. Recently the concept of bio-inspired synthetic material ari...
Source
#1Zeang Zhao (BIT: Beijing Institute of Technology)H-Index: 15
#2Hongshuai Lei (BIT: Beijing Institute of Technology)H-Index: 20
Last. Ming Lei (NPU: Northwestern Polytechnical University)H-Index: 11
view all 6 authors...
Abstract null null Double network elastomer is a class of molecular composites consisting of a brittle filler network and a ductile matrix network. Upon deformation, progressive scission of the filler network dissipates strain energy while the matrix network resists the micro defect propagation, thus enhancing both stiffness and toughness of the composites. Over the past few years, several types of constitutive models have been developed to capture the nonlinear stress-strain relation of double ...
Source
#1Takahiro Matsuda (Hokkaido University)H-Index: 8
#2Runa Kawakami (Hokkaido University)H-Index: 2
Last. Jian Ping Gong (Hokkaido University)H-Index: 81
view all 5 authors...
The high fracture energy of tough soft materials can be attributed to the large energy dissipation zone around the crack tip. Hence, quantitative characterization of energy dissipation is the key t...
Source
#1Zeang Zhao (BIT: Beijing Institute of Technology)H-Index: 15
#2Dong Wu (PKU: Peking University)H-Index: 2
Last. Hongshuai Lei (BIT: Beijing Institute of Technology)H-Index: 20
view all 6 authors...
Abstract null null Multinetwork (MN) is a common topological structure in polymerization related manufacturing and artificial high-performance polymers. Currently the experimental and theoretical researches of MNs are generally focused on the deformation and failure mechanism of self-dissimilar tough hydrogels or tough elastomers, in which the topological structures of each sub network are significantly different. In naturally formed MNs the networks are highly entangled and the interactions bet...
Source
#1Rui Xiao (ZJU: Zhejiang University)H-Index: 19
#2Ning Han (ZJU: Zhejiang University)H-Index: 1
Last. Shaoxing Qu (ZJU: Zhejiang University)H-Index: 39
view all 4 authors...
Abstract null null Compared with traditional single network elastomers, multiple network elastomers (MNEs) can achieve high stiffness and toughness. MNEs can be assumed as elastomer composites, where the first network elastomer serves as fillers and the other networks are assumed as matrix. Thus, similar to nanoparticle filled rubbers, MNEs also exhibit the Mullins effect. In addition, the mechanical response of MNEs shows significant dependence on the prestretching ratio of the filler network. ...
Source
#1Justin Tauber (WUR: Wageningen University and Research Centre)H-Index: 4
#2Lorenzo Rovigatti (Sapienza University of Rome)H-Index: 27
Last. Jasper van der Gucht (WUR: Wageningen University and Research Centre)H-Index: 34
view all 4 authors...
The stress response of polymer double networks depends not only on the properties of the constituent networks but also on the interactions arising between them. Here, we demonstrate, via coarse-grained simulations, that both their global stress response and their microscopic fracture mechanics are governed by load sharing through these internetwork interactions. By comparing our results with affine predictions, where stress redistribution is by definition homogeneous, we show that stress redistr...
Source
#1Yinjun Chen (University of Paris)H-Index: 4
#2Gabriel E. Sanoja (University of Paris)H-Index: 10
Last. Costantino Creton (University of Paris)H-Index: 67
view all 3 authors...
The molecular level transfer of stress from a stiff percolating filler to a stretchable matrix is a crucial and generic mechanism of toughening in soft materials. Yet the molecular details of how this transfer occurs have so far been experimentally unreachable. Model multiple network elastomers containing spiropyran (SP) force sensors incorporated into the stiff filler network or into the stretchable matrix network are used here to detect and investigate the mechanism of stress transfer between ...
Source
#1Yin Liu (KAUST: King Abdullah University of Science and Technology)H-Index: 2
#2Brian Moran (KAUST: King Abdullah University of Science and Technology)H-Index: 42
Abstract In this paper, we derive the asymptotic crack tip fields in a neo-Hookean material reinforced by nonlinear fibers. The fiber are characterized by a power law model which exhibits significant stiffening behavior at large stretch. A specific case of the model yields the so-called standard reinforcing model (Triantafyllidis and Abeyaratne, 1983). A series of transformations is used to set the stage for the asymptotic solution. We begin with a coordinate scaling (Liu and Moran, 2020b) to ac...
Source
#2Wu Chen (TJU: Tianjin University)H-Index: 1
Last. Yuan Yuan (TJU: Tianjin University)H-Index: 5
view all 5 authors...
1,2-dioxetane is a well-known chemiluminescent mechanophore allowing real-time monitoring of polymer chain scission, but usually suffers from fluorescence quenching in polar environments. Herein, a series of mechanochemiluminescent waterborne polyurethanes/carbon dots composites (WPU-CDs) have been synthesized by incorporating fluorescent CDs to promote the energy transfer process in different environments. The resulting bulk WPUs, and in particular, their swollen films filled with large amount ...
Source
#1Zhi-Hui ChenH-Index: 2
#2Shu-Ting FanH-Index: 2
Last. Ya CaoH-Index: 2
view all 8 authors...
High strength and ductility materials are in demand for various modern applications. In order to surmount the inherent trade-off between toughness and stiffness for most elastomers, we developed a strategy which let two polymer networks form an interpenetrated structure through introducing slip-rings by a very simple one-step synthesis method. The synergistic effect of the slip-rings and the double network structure make the resulting materials (SRDN elastomers) both tough and stiff. The fractur...
Source
This website uses cookies.
We use cookies to improve your online experience. By continuing to use our website we assume you agree to the placement of these cookies.
To learn more, you can find in our Privacy Policy.