Journal ArticleDOI
Self-healing and thermoreversible rubber from supramolecular assembly
Reads0
Chats0
TLDR
The design and synthesis of molecules that associate together to form both chains and cross-links via hydrogen bonds and the system shows recoverable extensibility up to several hundred per cent and little creep under load are designed and synthesized.Abstract:
Rubbers exhibit enormous extensibility up to several hundred per cent, compared with a few per cent for ordinary solids, and have the ability to recover their original shape and dimensions on release of stress. Rubber elasticity is a property of macromolecules that are either covalently cross-linked or connected in a network by physical associations such as small glassy or crystalline domains, ionic aggregates or multiple hydrogen bonds. Covalent cross-links or strong physical associations prevent flow and creep. Here we design and synthesize molecules that associate together to form both chains and cross-links via hydrogen bonds. The system shows recoverable extensibility up to several hundred per cent and little creep under load. In striking contrast to conventional cross-linked or thermoreversible rubbers made of macromolecules, these systems, when broken or cut, can be simply repaired by bringing together fractured surfaces to self-heal at room temperature. Repaired samples recuperate their enormous extensibility. The process of breaking and healing can be repeated many times. These materials can be easily processed, re-used and recycled. Their unique self-repairing properties, the simplicity of their synthesis, their availability from renewable resources and the low cost of raw ingredients (fatty acids and urea) bode well for future applications.read more
Citations
More filters
Journal ArticleDOI
Stretchable Electronics Based on PDMS Substrates.
TL;DR: The strategies for fabricating stretchable electronics on PDMS substrates are summarized, and the influence of the physical and chemical properties of PDMS, including surface chemical status, physical modulus, geometric structures, and self-healing properties, on the performance of stretchable Electronics is discussed.
Journal ArticleDOI
Microtubules self-repair in response to mechanical stress.
Laura Schaedel,Karin John,Jérémie Gaillard,Maxence V. Nachury,Laurent Blanchoin,Manuel Théry,Manuel Théry +6 more
TL;DR: These findings demonstrate that microtubules are ductile materials with self-healing properties, that their dynamics does not exclusively occur at their ends, and that their lattice plasticity enables the microtubule's adaptation to mechanical stresses.
Journal ArticleDOI
Effect of polymer architecture on the intrinsic self-healing character of polymers
TL;DR: In this article, the effect of polymer architecture on the intrinsic healing character of polymeric materials using different reversible chemistries has been investigated and highlighted the need for more studies on this particular topic.
Journal ArticleDOI
A biomimetic modular polymer with tough and adaptive properties.
TL;DR: This work has synthesized a biomimetic modular polymer that not only closely mimics the modular multidomain structure of titin, but also manifests an exciting combination of mechanical properties, as well as adaptive properties such as self-healing and temperature-responsive shape-memory properties.
Journal ArticleDOI
Coaxial Electrospinning of Self-Healing Coatings
Jeong-Ho Park,Paul V. Braun +1 more
TL;DR: A new approach to self-healing polymer coating systems based on an electrospun coaxial healing agent is proposed and the effectiveness of such an approach to add autonomic functionality to polymer coatings is demonstrated.
References
More filters
MonographDOI
Supramolecular Chemistry: Concepts and Perspectives
TL;DR: From molecular to supramolescular chemistry: concepts and language of supramolecular chemistry, molecular recognition, information, complementarity molecular receptors - design principles and more.
Journal ArticleDOI
Reversible Polymers Formed from Self-Complementary Monomers Using Quadruple Hydrogen Bonding
Rint P. Sijbesma,Felix Hugo Beijer,Felix Hugo Beijer,Luc Brunsveld,Luc Brunsveld,B. J. B. Folmer,B. J. B. Folmer,J. H. K. Ky Hirschberg,J. H. K. Ky Hirschberg,Ronald Frans Maria Lange,Ronald Frans Maria Lange,Jimmy K. L. Lowe,Jimmy K. L. Lowe,E. W. Meijer,E. W. Meijer +14 more
TL;DR: 2-ureido-4-pyrimidone that dimerize strongly in a self-complementary array of four cooperative hydrogen bonds were used as the associating end group in reversible self-assembling polymer systems.
Journal ArticleDOI
Reptation of living polymers: dynamics of entangled polymers in the presence of reversible chain-scission reactions
TL;DR: Etude theorique de la dynamique de the relaxation de contrainte dans un systeme dense de polymeres vivants as mentioned in this paper, e.g.
Journal ArticleDOI
Molecular recognition directed self-assembly of supramolecular liquid crystalline polymers from complementary chiral components
Journal ArticleDOI
Dynamics of Entangled Solutions of Associating Polymers
Michael Rubinstein,A. N. Semenov +1 more
TL;DR: In this article, the authors developed a theory of "sticky reptation" to model the dynamics of entangled solutions of associating polymers with many stickers per chain, which predicts a very strong concentration dependence of viscosity in good agr...