Journal ArticleDOI
Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations.
Reads0
Chats0
TLDR
This work designs dynamic covalent polymer networks with unique adaptive properties for vitrimeric rheological behavior and solid-state plasticity for this type of material, and suggests a promising future for this class of materials.Abstract:
Dynamic covalent polymer networks have long been recognized. With the initial focus on the unintended impact of dynamic covalent linkages on the viscoelasticity of commercial rubbers, efforts in modern times have transitioned into designing dynamic covalent polymer networks with unique adaptive properties. Whereas self-healing and thermoset reprocessing have been the primary motivations for studying dynamic covalent polymer networks, the recent discovery of the vitrimeric rheological behavior and solid-state plasticity for this type of material have opened up new opportunities in material innovations. This, coupled with the revelation of the dynamic characteristics of commercially relevant polymer building blocks such as esters and urethanes, suggests a promising future for this class of materials.read more
Citations
More filters
Journal ArticleDOI
Superior Toughness and Fast Self-Healing at Room Temperature Engineered by Transparent Elastomers
Seon-Mi Kim,Hyeonyeol Jeon,Sung-Ho Shin,Seul-A Park,Jonggeon Jegal,Sung Yeon Hwang,Dongyeop X. Oh,Jeyoung Park +7 more
TL;DR: A transparent and easily processable thermoplastic polyurethane with the highest reported tensile strength and toughness is prepared and the demonstration of a scratch-detecting electrical sensor coated on a tough TPU film capable of auto-repair at room temperature suggests that this film has potential applications in the wearable electronics industry.
Journal ArticleDOI
Dynamic Covalent Bonds in Polymeric Materials
TL;DR: This Minireview summarizes commonly used powerful DCBs formed by simple, often "click" reactions, and highlights the powerful materials that can result.
Journal ArticleDOI
Hydrogel Adhesion: A Supramolecular Synergy of Chemistry, Topology, and Mechanics
Journal ArticleDOI
Dynamic Covalent Polymer Networks: A Molecular Platform for Designing Functions beyond Chemical Recycling and Self-Healing.
TL;DR: In this article, the authors provide an overview of the above progress with particular focus on molecular design strategies for the exploitation of functional material properties, and point out the remaining issues and offer perspectives on how this class of materials can shape the future in ways that are complementary with classical thermoplastic and thermoset polymers.
Journal ArticleDOI
Dynamic covalent chemistry in polymer networks: a mechanistic perspective
TL;DR: In this article, a selection of such chemistries is highlighted, with a particular focus on the reaction mechanisms of molecular network rearrangements, and on how various mechanistic profiles can be related to the mechanical and physicochemical properties of polymer materials, in particular in relation with vitrimers, the recently defined third category of polymeric materials.
References
More filters
Journal ArticleDOI
Self-Healing Polymer Films Based on Thiol-Disulfide Exchange Reactions and Self-Healing Kinetics Measured Using Atomic Force Microscopy
Jeong Ae Yoon,Jun Kamada,Jun Kamada,Kaloian Koynov,Jake Mohin,Renaud Nicolaÿ,Yaozhong Zhang,Anna C. Balazs,Tomasz Kowalewski,Krzysztof Matyjaszewski +9 more
TL;DR: In this article, self-healing polymeric materials with branched architectures and reversible cross-linking functionalities at the periphery of branches were synthesized by atom transfer radical polymerization (ATRP).
Journal ArticleDOI
Reprocessing and Recycling of Highly Cross-Linked Ion-Conducting Networks through Transalkylation Exchanges of C-N Bonds.
TL;DR: The development of functional and high-value ion-conducting vitrimers that take inspiration from poly(ionic liquid)s are disclosed, showing a great potential for applications that require solid electrolytes with excellent mechanical performances and facile processing such as supercapacitors, batteries, fuel cells, and separation membranes.
Journal ArticleDOI
Shape memory polymer network with thermally distinct elasticity and plasticity
TL;DR: The dynamic shape-changing behavior paves a new way for fabricating geometrically complex multifunctional devices and integrates the elasticity and plasticity into a single polymer network.
Journal ArticleDOI
Self-healing systems based on disulfide–thiol exchange reactions
TL;DR: Stress relaxation experiments showed large relaxation for systems having PTM2 as a curing agent, which indicates that the system can rearrange its molecular structure as a mechanism to release stress, however, relaxation rates decreased for samples tested longer after production, indicating the disappearance of thiol-groups probably caused by thiol–thiol oxidation.
Journal ArticleDOI
Enhancing mechanical performance of a covalent self-healing material by sacrificial noncovalent bonds.
TL;DR: This work shows that incorporation of sacrificial bonds into a self-repairable network dramatically improves the overall mechanical properties of this covalently cross-linked polymer network, which can self-heal via olefin cross-metathesis.