Journal ArticleDOI
Self-healing and thermoreversible rubber from supramolecular assembly
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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
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Journal ArticleDOI
Dynamic Hydrogels with an Environmental Adaptive Self-Healing Ability and Dual Responsive Sol–Gel Transitions
Guohua Deng,Fuya Li,Hongxia Yu,Fuyong Liu,Chen-Yang Liu,Weixiang Sun,Huanfeng Jiang,Yongming Chen +7 more
TL;DR: In this paper, a dynamic polymer hydrogel with an environmental adaptive self-healing ability and dual responsive sol-gel transitions was prepared by combining acylhydrazone and disulfide bonds together in the same system.
Journal ArticleDOI
Hydrogels and Hydrogel-Derived Materials for Energy and Water Sustainability.
TL;DR: This review highlights the highly tunable synthesis of various hydrogels, involving key synthetic elements such as monomer/polymer building blocks, cross-linkers, and functional additives, and discusses how hydrogles can be employed as precursors and templates for architecting three-dimensional frameworks of electrochemically active materials.
Journal ArticleDOI
A self-repairing, supramolecular polymer system: healability as a consequence of donor–acceptor π–π stacking interactions
Stefano Burattini,Howard M. Colquhoun,Justin D. Fox,Donia Friedmann,Barnaby W. Greenland,Peter J. F. Harris,Wayne Hayes,Michael E. Mackay,Stuart J. Rowan +8 more
TL;DR: A novel supramolecular polymer system, in which the terminal pyrenyl groups of a polyamide intercalate into the chain-folds of apolyimide via electronically-complementary pi-pi stacking, shows both enhanced mechanical properties and facile healing characteristics as a result of the thermoreversibility of non-covalent interactions.
Journal ArticleDOI
Photochromism into nanosystems: towards lighting up the future nanoworld.
Ling Wang,Quan Li +1 more
TL;DR: This Review provides an account of the recent advancements in reversible photocontrol of the structures and functions of photochromic nanosystems and their applications and outlines the challenges that need to be addressed and the opportunities that can be tapped into.
Journal ArticleDOI
Novel Mussel‐Inspired Injectable Self‐Healing Hydrogel with Anti‐Biofouling Property
TL;DR: A novel mussel-inspired injectable hydrogel with self-healing and anti-biofouling capabilities is developed and it possesses great potential as a drug-delivery carrier.
References
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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
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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...