Journal ArticleDOI
Dynamic Covalent Polymer Networks: from Old Chemistry to Modern Day Innovations.
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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
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Journal ArticleDOI
Spatiotemporally Controlled Plasticity and Elasticity in 3D Multi-Shape Memory Structures Enabled by Elemental Sulfur-Derived Polysulfide Networks with Intrinsic NIR Responsiveness.
Ji Mok Lee,Yong-Seok Choi,Guk Yun Noh,Woohwa Lee,Youngjae Yoo,Dong-Gyun Kim,Ho Gyu Yoon,Yong Seok Kim +7 more
TL;DR: An effective and facile preparation of thermadapt SMPs based on elemental sulfur-derived poly(phenylene polysulfide) networks (PSNs) that enable versatile shape manipulation of 3D multi-shape memory structures, including building block assembly, reconfiguration, shape fixing/recovery, and repair.
Journal ArticleDOI
Extrudable Vitrimeric Rubbers Enabled via Heterogeneous Network Design
Shuangjiang Yu,Fanzhu Li,Shifeng Fang,Xiaochun Yin,Siwu Wu,Zhenghai Tang,Liqun Zhang,Baochun Guo +7 more
Journal ArticleDOI
Intrinsic self-healing rubber: A review and perspective of material and reinforcement
TL;DR: In this paper , the effect of filler reinforcement on self-healing was discussed, which can participate in reversible crosslink reactions and enhance the mechanical properties of the rubber materials, and the potential applications of selfhealing rubber were discussed.
Journal ArticleDOI
Thermodynamics and Stereochemistry of Diels–Alder Polymer Networks: Role of Crosslinker Flexibility and Crosslinking Density
Qing Zhou,Zhen Sang,Kartik Kumar Rajagopalan,Yelena R. Sliozberg,Frank Gardea,Svetlana A. Sukhishvili +5 more
TL;DR: In this article, dynamic covalent polymer networks crosslinked through Diels-Alder (DA) reactions are promising self-healing, 3D-printable materials that have the unique ability to reshuffle their dynamic bonds in...
Journal ArticleDOI
Structure-Reactivity-Property Relationships in Covalent Adaptable Networks.
TL;DR: In this article , the authors analyze structure-reactivity-property relationships for several classes of CANs, illustrating both general design principles and the predictive potential of linear free energy relationships (LFERs) applied to CANs.
References
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Journal ArticleDOI
Autonomic healing of polymer composites
Scott R. White,Nancy R. Sottos,Philippe H. Geubelle,Jeffrey S. Moore,Jeffrey S. Moore,Michael R. Kessler,Suresh R. Sriram,Suresh R. Sriram,Eric Brown,S. Viswanathan +9 more
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Journal ArticleDOI
Controlled/living radical polymerization: Features, developments, and perspectives
TL;DR: In this article, a review of recent mechanistic developments in the field of controlled/living radical polymerization (CRP) is presented, with particular emphasis on structure-reactivity correlations and "rules" for catalyst selection in ATRP, for chain transfer agent selection in reversible addition-fragmentation chain transfer (RAFT) polymerization, and for the selection of an appropriate mediating agent in stable free radical polymerisation (SFRP), including organic and transition metal persistent radicals.
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Self-healing and thermoreversible rubber from supramolecular assembly
TL;DR: 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.
Journal ArticleDOI
A Thermally Re-mendable Cross-Linked Polymeric Material
Xiangxu Chen,Matheus Adrianus Dam,Kanji Ono,Ajit Mal,Hongbin Shen,Steven Nutt,Kevin Sheran,Fred Wudl +7 more
TL;DR: A transparent organic polymeric material that can repeatedly mend or “re-mend” itself under mild conditions and is a tough solid at room temperature and below with mechanical properties equaling those of commercial epoxy resins.
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Silica-Like Malleable Materials from Permanent Organic Networks
TL;DR: In this paper, the authors designed epoxy networks that can rearrange their topology by exchange reactions without depolymerization, and showed that they are insoluble and processable.