Imine and metal–ligand dynamic bonds in soft polymers for autonomous self-healing capacitive-based pressure sensors

Soft Matter ◽  
2019 ◽  
Vol 15 (38) ◽  
pp. 7654-7662 ◽  
Author(s):  
Julia Pignanelli ◽  
Blandine Billet ◽  
Matthew Straeten ◽  
Michaela Prado ◽  
Kory Schlingman ◽  
...  
Keyword(s):  
Pressure Sensors ◽  
Self Healing ◽  
New Materials ◽  
Metal Ligand ◽  
Soft Polymers

In this work, a facile and simple yet effective method to generate intrinsic autonomous self-healing polymers was developed, leading to new materials that can be easily fine-tuned both mechanically and chemically.

scholarly journals Modulating the thermomechanical properties and self-healing efficiency of siloxane-based soft polymers through metal–ligand coordination

2020 ◽  
Vol 44 (21) ◽  
pp. 8977-8985 ◽  
Author(s):  
Julia Pignanelli ◽  
Zhiyuan Qian ◽  
Xiaodan Gu ◽  
Mohammed Jalal Ahamed ◽  
Simon Rondeau-Gagné
Keyword(s):  
Thermomechanical Properties ◽  
Self Healing ◽  
Efficient Strategy ◽  
Healing Efficiency ◽  
Ligand Coordination ◽  
Metal Ligand ◽  
Soft Polymers

An efficient strategy to modulate the thermomechanical properties and self-healing of soft polymers has been developed by rationally selecting the metal used for supramolecular crosslinking.

Fast self-healing multifunctional polyvinyl alcohol nano-organic composite hydrogel as building blocks for highly sensitive strain/pressure sensors

2021 ◽  
Author(s):  
Wenhao Zhao ◽  
Dongzhi Zhang ◽  
Yan Yang ◽  
Chen Du ◽  
Bao Zhang
Keyword(s):  
Polyvinyl Alcohol ◽  
Human Computer Interaction ◽  
Pressure Sensors ◽  
Building Blocks ◽  
Composite Hydrogel ◽  
Sensitive Strain ◽  
Self Healing ◽  
Wearable Sensor ◽  
Hybrid Hydrogel ◽  
Highly Sensitive

The conductive and biocompatible hybrid hydrogel was successfully assembled into an adhesive, flexible wearable sensor for ultra-sensitive human-computer interaction and smart detection, which holds excellent self-healing capability. This conductive, repairable...

scholarly journals Reversible Assembly of Terpyridine Incorporated Norbornene-Based Polymer via a Ring-Opening Metathesis Polymerization and Its Self-Healing Property

Polymers ◽  
2018 ◽  
Vol 10 (10) ◽  
pp. 1173 ◽  
Author(s):  
Jookyeong Lee ◽  
Hwi Moon ◽  
Keewook Paeng ◽  
Changsik Song
Keyword(s):  
Ring Opening ◽  
Transition Metal Ions ◽  
Self Healing ◽  
Ring Opening Metathesis Polymerization ◽  
Metathesis Polymerization ◽  
Ligand Interactions ◽  
Healing Agent ◽  
Healing Property ◽  
External Stimuli ◽  
Metal Ligand

We induced a terpyridine moiety into a norbornene-based polymer to demonstrate its self-healing property, without an external stimulus, such as light, heat, or healing agent, using metal–ligand interactions. We synthesized terpyridine incorporated norbornene-based polymers using a ring-opening metathesis polymerization. The sol state of diluted polymer solutions was converted into supramolecular assembled gels, through the addition of transition metal ions (Ni2+, Co2+, Fe2+, and Zn2+). In particular, a supramolecular complex gel with Zn2+, which is a metal with a lower binding affinity, demonstrated fast self-healing properties, without any additional external stimuli, and its mechanical properties were completely recovered.

A novel type of self-healing silicone elastomers with reversible cross-linked network based on the disulfide, hydrogen and metal-ligand bonds

2020 ◽  
Vol 144 ◽  
pp. 105661 ◽  
Author(s):  
Yuetao Liu ◽  
Junguo Yuan ◽  
Kaiming Zhang ◽  
Keyu Guo ◽  
Lin Yuan ◽  
...  
Keyword(s):  
Self Healing ◽  
Silicone Elastomers ◽  
Metal Ligand

A Conductive Self-Healing Hybrid Gel Enabled by Metal–Ligand Supramolecule and Nanostructured Conductive Polymer

Nano Letters ◽  
2015 ◽  
Vol 15 (9) ◽  
pp. 6276-6281 ◽  
Author(s):  
Ye Shi ◽  
Ming Wang ◽  
Chongbo Ma ◽  
Yaqun Wang ◽  
Xiaopeng Li ◽  
...  
Keyword(s):  
Conductive Polymer ◽  
Self Healing ◽  
Hybrid Gel ◽  
Metal Ligand

The Underlying Chemistry of Self-Healing Materials

MRS Bulletin ◽  
2008 ◽  
Vol 33 (8) ◽  
pp. 759-765 ◽  
Author(s):  
Kyle A. Williams ◽  
Daniel R. Dreyer ◽  
Christopher W. Bielawski
Keyword(s):  
Ring Opening ◽  
State Of The Art ◽  
Noncovalent Interactions ◽  
Self Healing ◽  
Covalent Bonds ◽  
The Past ◽  
Ring Opening Reactions ◽  
Ligand Interactions ◽  
Reversible Covalent ◽  
Metal Ligand

AbstractOver the past ten years, a broad range of self-healing materials, systems that can detect when they have been damaged and heal themselves either spontaneously or with the aid of a stimulus, has emerged. Although many unique compositions and components are used to create these materials, they all employ basic chemical reactions to facilitate repair processes. Kinetically controlled ring-opening reactions and reversible metal–ligand interactions have proven useful in autonomic self-healing materials, which require no stimulus (other than the formation of damage) for operation. In contrast, nonautonomic self-healing materials, which require some type of externally applied stimulus (such as heat or light) to enable healing functions, have capitalized on chemistries that utilize either reversible covalent bonds or various types of noncovalent interactions. This review describes the underlying chemistries used in state-of-the-art self-healing materials, as well as those currently in development.

Hooking Together Sigmoidal Monomers into Supramolecular Polymers

2019 ◽  
Author(s):  
Marco Carini ◽  
Mauro Marongiu ◽  
Karol Strutyński ◽  
Akinori Saeki ◽  
Manuel Melle-Franco ◽  
...  
Keyword(s):  
Electronic Transport ◽  
Conductive Polymers ◽  
Supramolecular Polymers ◽  
Self Healing ◽  
Stimuli Responsive ◽  
New Materials ◽  
Conjugated Molecules ◽  
New Approach ◽  
Conducting Materials ◽  
The Way

<div><div><div><p>Supramolecular polymers have a lot of potential in the development of new materials because of their inherent recyclability and their self-healing and stimuli-responsive properties. Supramolecular conductive polymers are generally obtained by the assembly of individual disk-like π-conjugated molecules into columnar arrays that provide an optimal channel for electronic transport. We report a new approach to prepare supramolecular polymers by hooking together sigmoidal monomers into 1D arrays of π-stacked anthracene and acridine units, which give rise to micrometer-sized fibrils that show pseudoconductivities in line with other conducting materials. This approach paves the way for the design of new supramolecular polymers constituted by acene derivatives with enhanced excitonic and electronic transporting properties.</p></div></div></div>

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