A Novel and Non-Cytotoxic Self-Healing Supramolecular Elastomer Synthesized with Small Molecular Biological Acids

Liu, Ling; Pan, Cheng; Zhang, Liqun; Guo, Baochun

doi:10.1002/marc.201600300

Cited by 21 publications

(18 citation statements)

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“…In the spectra, the absorption peaks at 3287, 1645, 1551, 1265, 1125, and 721 cm −1 belong to amide structures of SE elastomer, while the absorption peaks at 2926, 2854, 1461, and 1362 cm −1 are assigned to CH 2  vibration. These peaks agree well with previous literature . All SE‐AT materials include amide structures, which can build hydrogen‐bonded interactions between the molecular chains.…”

supporting

confidence: 90%

“…The SE exhibits a temperature glass transition (Tg) at −4 °C and a melting endotherm at 52.9 °C. Based on our previous report, the directional interactions from the NH and CO hydrogen bonds of monoalkyl‐urea and 1,3‐dialkyl urea without lateral functional groups cause regular arrangements and yield crystalline phases. Compared with SE, the Tg of all SE‐AT materials increases and melting peak disappears.…”

mentioning

confidence: 93%

“…obtained supramolecular elastomers based on linear carboxyl‐terminated polydimethylsiloxane oligomers. In our previous work, we used small‐molecular biological acids to synthesize a self‐healing supramolecular elastomer (SE).…”

mentioning

confidence: 99%

“…So the development for other elastomers that simultaneously exhibit dielectric, electro‐mechanical property, and self‐healing behavior is still an unmet challenge. Based on our previous research on self‐healing supramolecular elastomer, herein we develop a new self‐healing dielectric supramolecular elastomer SE‐AT by functionalizing self‐healing elastomer with aniline tetramer (AT). The synthetic route is shown in Figure .…”

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confidence: 99%

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A Self‐Healing Dielectric Supramolecular Elastomer Functionalized with Aniline Tetramer

Liu

Yan

Zhang

2018

Macromol. Rapid Commun.

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A new design strategy to produce a supramolecular elastomer with self‐healing and dielectric properties by synthesizing an aniline tetramer (AT)‐functionalized supramolecular elastomer (SE‐AT) is demonstrated. The termination of AT in the supramolecular system not only shortens linear amide molecular chain to decrease glass transition temperature but also destroys the crystallization to achieve amorphous structure. The SE‐AT provides two kinds of noncovalent bonding including π–π stacking and the hydrogen bond, which makes the material more easily healed. The SE‐AT20% can heal mechanical properties within 24 h at room temperature without any external stimulus. The dielectric constant shows a continuous increase overall with increasing AT content. The material exhibits good electro‐mechanical properties, which is attributed to a simultaneous increase in dielectric constant and decrease in modulus. The maximum actuated strain significantly increases with the increasing AT content and the SE‐AT20% reaches 10% at 1 V µm−1. Moreover, SE‐AT exhibits the ability to regain actuated strain on the location of the mechanical damage after self‐healing.

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confidence: 90%

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confidence: 93%

mentioning

confidence: 99%

mentioning

confidence: 99%

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A Self‐Healing Dielectric Supramolecular Elastomer Functionalized with Aniline Tetramer

Liu

Yan

Zhang

2018

Macromol. Rapid Commun.

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“…Zhang and co‐workers reported a non‐cytotoxic healable supramolecular elastomer synthesized using small‐molecular biological acids (sebacic acid and citric acid) as raw materials through hydrogen‐bonding interactions. The supramolecular elastomer exhibited spontaneous self‐healing behavior with the self‐healing efficiency of 98.6% at room temperature without external assistance, ascribing to the efficient self‐healing ability of the hydrogen bonding in the materials . These smart supramolecular materials systems exhibit extremely useful effect in raising structural safety, materials lifetime, and environmental sustainability, as well as enabling electronic applications.…”

Section: Healable Electronic Devicesmentioning

confidence: 99%

Healable Transparent Electronic Devices

Luo

Wan

Yang

et al. 2017

Adv Funct Materials

122

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With the advent of the digital era, healable electronic devices are being developed to alleviate the propagation of breakdown in electronics due to the mechanical damage caused by bending, accidental cutting or scratching. Meanwhile, flexible transparent electronics, exhibiting high transmittance and robust flexibility, are drawing enormous research efforts due to their potential applications in various integrated wearable electronics. However, the breakdown of flexible transparent electronics seriously limits their reliability and lifetime. Therefore, transparent healable electronics are desired to tackle these problems, yet most of the healable electronics are not transparent nowadays. The combination of high performance, healability, and transparency into electronics is often mutually exclusive. Herein, after a brief introduction of self-healing materials, healable electronics, and flexible transparent electronics, the recent progress in the healable electronic devices without transparency is reviewed in detail. Then, healable transparent electronic devices with high transparency, robust portability, and reliable flexibility are summarized. They are drawing great attention owing to their potential application in optical devices as well as smart wearable and integrated optoelectronic devices. Following that, the critical challenges and prospects are highlighted for the development of healable transparent electronic devices.The ORCID identification number(s) for the author(s) of this article can be found under http://dx.

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A Solvent‐Resistant and Biocompatible Self‐Healing Supramolecular Elastomer with Tunable Mechanical Properties

Liu

Zhu

Zhang

2017

Macro Chemistry & Physics

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to achieve self-healing ability under specific environment or external stimulus such as heat or solvent. [10][11][12][13][14] To obtain self-healing ability at room temperature, supramolecular elastomers based on small-molecule system were obtained recently. Leibler and coworkers [15,16] first synthesized a selfhealing elastomer by utilizing vegetable oil fatty acid derivatives with diethylenetriamine (DETA) and urea through a two-step reaction. The obtained material, whose glass transition temperature (T g ) was 28 °C, exhibited rubber-like behavior only if heating over 90 °C or adding 11% w/w dodecane as plasticizer, and showed a spontaneous self-healing ability at room temperature. Montarnal et. al. [17] obtained four different classes of materials by using oligocondensation of 2-aminoethylimidazolidone endcapped mixture of fatty acid with DETA and urea. Bao and co-workers [18] described an elastic nanocomposite material with the ability to rapidly self-heal at room temperature by combining a fatty tri-acid, DETA, and graphene oxide as a macrocrosslinker. Zhang and co-workers [19] obtained supramolecular elastomers through reacting linear carboxyl-terminated polydimethylsiloxane oligomers (PDMS-COOH 2 ) with DETA and urea. Our previous work [20] synthesized a self-healing supramolecular elastomer with small-molecular biological acids. The synthesized materials behaved as rubber at room temperature without additional plasticizers or crosslinkers.However, the small-molecule systems by hydrogen-bond interactions are easier to suffer from low mechanical properties and poor solvent-resistance than macromolecular systems due to the lack of molecular chain entanglement. In order to overcome this problem, hybrid networks containing covalent and hydrogen bonds were developed. These researches used epoxide (diepoxide and tetraepoxide) as manageable crosslinker to enhance mechanical properties and insolubility by controlling stoichiometries and side reactions, [21][22][23] which in turn decreased self-healing behavior. Hence, a supramolecular elastomer with self-healing behavior and solvent-resistance and tunable mechanical properties is desirable.Herein, we design a new reaction system and use sebacic acid and lignin as main raw materials to synthesize a ligninbased supramolecular elastomer (LSE). The synthesis route of Self-Healing ElastomersThe purpose of this work is to demonstrate a new design strategy to produce a self-healing supramolecular elastomer with solvent resistance and biocompatibility and tunable mechanical properties. This aim is successfully achieved by synthesizing a lignin-based supramolecular elastomer (LSE) through branching amide molecular chains on the lignin. The use of lignin effectively reduces the glass transition temperature and the degree of crystallinity of LSEs and generates urea-modified hydrogen bond groups to obtain self-healing capability. The synthesized LSEs behave as rubber and exhibit spontaneous self-healing behavior at room temperature without external stimuli. The mechanical an...

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A Novel and Non-Cytotoxic Self-Healing Supramolecular Elastomer Synthesized with Small Molecular Biological Acids

Cited by 21 publications

References 50 publications

A Self‐Healing Dielectric Supramolecular Elastomer Functionalized with Aniline Tetramer

A Self‐Healing Dielectric Supramolecular Elastomer Functionalized with Aniline Tetramer

Healable Transparent Electronic Devices

A Solvent‐Resistant and Biocompatible Self‐Healing Supramolecular Elastomer with Tunable Mechanical Properties

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