A reversible functional supramolecular material formed by host–guest inclusion

Wang, Yi‐Fu; Zhang, Dali; Zhou, Tao; Zhang, Hong‐Su; Zhang, Wan-Zhen; Luo, Ling; Zhang, Aiming; Li, Bang‐Jing; Zhang, Sheng

doi:10.1039/c3py01509b

Cited by 34 publications

(28 citation statements)

References 33 publications

(42 reference statements)

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“…[82] Reversible deactivation radical polymerization is exploited in some examples to synthesize tailored polymers containing multiple host/guest motifs.A b-CD triple linker and PDMA doubly end functionalized with Angewandte Chemie Reviews 8356 www.angewandte.org adamantyl groups was introduced by Ritter and co-workers to obtain supramolecular networks. [83] Thev ery important field of stimuli-responsive hydrogels has been explored by several research groups;f or example,r edox-responsive networks were described by Zhang and co-workers [84] as well as photoand redox-responsive hydrogels by Wang and co-workers. [85] …”

Section: Hydrogelsmentioning

confidence: 99%

Dynamic Macromolecular Material Design—The Versatility of Cyclodextrin‐Based Host–Guest Chemistry

2017

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Dynamic and adaptive materials are powerful constructs in macromolecular and polymer chemistry with a wide array of applications in drug delivery, bioactive systems, and self‐healing materials. Very often, dynamic materials are based on carefully tailored cyclodextrin host–guest interactions. The precise incorporation of these host and guest moieties into macromolecular building blocks allows the formation of complex macromolecular structures with predefined functions. Thus, dynamic materials with extraordinary adaptive property profiles—responsive to thermal, chemical, and photonic fields—become accessible. This Review explores the hierarchical formation of dynamic materials and complex macromolecular structures from the molecular via the macromolecular to the colloidal and macroscopic level, with a specific emphasis on the functionality and responsiveness of the assemblies, specifically in biological contexts.

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Section: Hydrogelsmentioning

confidence: 99%

Dynamic Macromolecular Material Design—The Versatility of Cyclodextrin‐Based Host–Guest Chemistry

2017

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“…Wang et al utilized fatty acids modified with β-CD and poly(ethylenimine) oligomer-grafted Fc, in the design of a supramolecular network with self-healing properties [235]. After cutting this material into pieces and then bringing the pieces together, the material healed within 5 min (the presence of absorbed water is required for self-healing).…”

Section: Self-healing Polymers Based On Reversible Host-guest Interacmentioning

confidence: 99%

Intrinsic Self-Healing Polymers Based on Supramolecular Interactions: State of the Art and Future Directions

Enke

Döhler

Bode

et al. 2015

Self-Healing Materials

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Supramolecular polymers are an intriguing class of materials with dynamic behavior as a result of the presence of non-covalent bonds. These bonds include hydrogen bonds, metallopolymers, ionomers, host-guest as well as π-π interactions. The strength of these supramolecular bonds can be tuned by varying the binding motifs. Their reversible and dynamic character can be utilized to engineer self-healing polymers. This review briefly presents the preconditions for design of self-healing polymers and summarizes the development of supramolecular self-healing polymers based on various non-covalent interactions. Furthermore, challenges and perspectives for the understanding of self-healing mechanisms and the preparation of novel materials with enhanced properties are discussed.

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“…It can be seen that in the case of the SWNTs-b-CD-PEI-Ad complex, the feature of Ad at 889 cm À1 showed correlation with the feature of b-CD (755 cm À1 ). 15 While this cross-peak almost disappeared in the physical mixture of SWNTs-b-CD and PEI-Ad map.…”

mentioning

confidence: 96%

“…15 According to the theory of 2D-IR developed by Noda et al, 16 a cross-peak is generated when two dipole-transition moments associated with the molecular vibrations of different functional groups are reoriented simultaneously. Such cooperative motion of the local structures is expected when strong interactions exist among different groups.…”

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confidence: 99%

An efficient multiple healing conductive composite via host–guest inclusion

Zhang

Jü

et al. 2015

Chem. Commun.

Self Cite

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A self-healable conductive composite is developed by combining the small molecules and nanotubes through host-guest interactions. This material shows uniform conductivity, microwave absorption and humidity sensing properties, and can be rapidly healed to over 90% electrical and mechanical properties with the aid of water multiple times. In addition, the produced material is also remouldable and recyclable.Driven by the motivation of developing advanced reliable and durable materials, there has been intense research into selfhealing materials. 1 But up to now, most self-healing materials are structural materials. 2 The research on functional materials with self-healing properties is relatively rare. 3 Electrically conductive materials are a class of functional materials and are indispensable for the development of various modern electronics. 4 Restoration of the conductivity of an electronic component could be of great significance for building advanced electronics. 5 A few healable conductive materials have been developed. 6 For example, Bielawski etc. firstly fabricated a self-healing conductor by introducing reversible bonds into conductive polymers which consist of N-heterocyclic carbenes and transition metals, 7 but the healing process requires high temperatures and solvent vapor. Polymeric microcapsules incorporated with conductive species as the healing agent were also explored to create self-healing conductive materials. 8 When mechanical damage was exerted to the capsules, these capsules were ruptured and the conductive species were released to the damaged region. Hence, the conductivity was restored. This capsule-based method is fast, efficient, and the healing process is autonomous. 9 But healing is not repeatable at a given place and does not allow simultaneous structural healing. Another alternative method is to impart the selfhealing ability of polymers to inorganic conductive materials (such as Ag, mNi, and nanotubes). 10 These materials heal themselves either by manually bring the broken conductors into contact or with the aid of stimuli. 11 However, among these materials, hydrogenbonded materials suffer from the slow healing speed and poor tolerance to moisture, and multilayer films deposited silver nanowires show nonuniform electrical properties from the interior to the surface. Developing conductive materials that possess parameters including uniform conductivity, fast self-healing speed, both electrical and mechanical healing capability, and repeatable healing capability is still a challenge.In this communication, we design a composite material by combining the small molecules and nanotubes through hostguest interactions. The resultant composite shows uniform conductivity, and can be rapidly healed to over 90% electrical and mechanical properties with the aid of water multiple times. In addition, the produced material is also remouldable and recyclable. b-Cyclodextrin-decorated single-walled carbon nanotubes (b-CD-SWNT) acted as macro-crosslinkers, and endowed the composite with mechanical s...

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A reversible functional supramolecular material formed by host–guest inclusion

Cited by 34 publications

References 33 publications

Dynamic Macromolecular Material Design—The Versatility of Cyclodextrin‐Based Host–Guest Chemistry

Dynamic Macromolecular Material Design—The Versatility of Cyclodextrin‐Based Host–Guest Chemistry

Intrinsic Self-Healing Polymers Based on Supramolecular Interactions: State of the Art and Future Directions

An efficient multiple healing conductive composite via host–guest inclusion

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