Self-Healing Multiphase Polymers via Dynamic Metal–Ligand Interactions

2014 ◽  
Vol 136 (46) ◽  
pp. 16128-16131 ◽  
Author(s):  
Davoud Mozhdehi ◽  
Sergio Ayala ◽  
Olivia R. Cromwell ◽  
Zhibin Guan
Keyword(s):  
Self Healing ◽  
Ligand Interactions ◽  
Metal Ligand

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.

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.

A facile strategy to fabricate highly-stretchable self-healing poly(vinyl alcohol) hybrid hydrogels based on metal–ligand interactions and hydrogen bonding

2016 ◽  
Vol 7 (47) ◽  
pp. 7269-7277 ◽  
Author(s):  
Yan Hui ◽  
Zhi-Bin Wen ◽  
Florence Pilate ◽  
Hui Xie ◽  
Cheng-Jie Fan ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Self Healing ◽  
Hybrid Hydrogel ◽  
Hybrid Hydrogels ◽  
Ligand Interactions ◽  
Highly Stretchable ◽  
Metal Ligand

A novel poly(vinyl alcohol) hybrid hydrogel based on metal–ligand interactions and hydrogen bonding was fabricated, possessing highly-stretchable and self-healing properties.

Self-healing and shape-memory properties of polymeric materials cross-linked by hydrogen bonding and metal–ligand interactions

2019 ◽  
Vol 10 (33) ◽  
pp. 4519-4523 ◽  
Author(s):  
Yuichiro Kobayashi ◽  
Tomohiro Hirase ◽  
Yoshinori Takashima ◽  
Akira Harada ◽  
Hiroyasu Yamaguchi
Keyword(s):  
Hydrogen Bonding ◽  
Shape Memory ◽  
Polymeric Materials ◽  
Cross Linking ◽  
Self Healing ◽  
Shape Memory Properties ◽  
Ligand Interactions ◽  
Non Covalent Interactions ◽  
Covalent Interactions ◽  
Metal Ligand

Polymeric materials were prepared by cross-linking them with two independent non-covalent interactions, namely hydrogen bonding and metal–ligand interactions.

scholarly journals Different manifestations of enhanced π-acceptor ligation at every redox level of [Os(9-OP)L2]n, n = 2+, +, 0, − (9-OP− = 9-oxidophenalenone and L = bpy or pap)

2016 ◽  
Vol 45 (45) ◽  
pp. 18241-18251 ◽  
Author(s):  
Arijit Singha Hazari ◽  
Alexa Paretzki ◽  
Jan Fiedler ◽  
Stanislav Zalis ◽  
Wolfgang Kaim ◽  
...  
Keyword(s):  
Donor And Acceptor ◽  
Ligand Interactions ◽  
Redox Level ◽  
Metal Ligand

Enhanced metal–ligand and ligand–ligand interactions are promoted in an osmium complex with non-innocent donor and acceptor ligands.

Metal–ligand interactions in Fe(II)-dioxime complexes

2008 ◽  
Vol 867 (1-3) ◽  
pp. 1-4 ◽  
Author(s):  
Balázs Krámos ◽  
Attila Kovács
Keyword(s):  
Ligand Interactions ◽  
Metal Ligand
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