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A multiple-responsive self-healing supramolecular polymer gel network based on multiple orthogonal interactions.

Jiayi Zhan1, Mingming Zhang, Mi Zhou

  • 1College of Material, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou, 310036, PR China.

Macromolecular Rapid Communications
|June 20, 2014
PubMed
Summary

Researchers developed novel supramolecular polymer networks using orthogonal interactions. These networks exhibit tunable topology and form self-healing, stimuli-responsive gels.

Keywords:
gelsorthogonal interactionsself-assemblyself-healingstimuli-responsiveness

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Area of Science:

  • Supramolecular Chemistry
  • Polymer Science
  • Materials Science

Background:

  • Supramolecular polymer networks are important for their topology and properties like stimuli-responsiveness and self-healing.
  • Constructing these networks often relies on specific non-covalent interactions.
  • Supramolecular polymer networks utilizing multiple orthogonal interactions are less common.

Purpose of the Study:

  • To present a novel supramolecular polymer network based on multiple orthogonal interactions.
  • To demonstrate the tunable topology of these networks.
  • To achieve stimuli-responsive and self-healing supramolecular gels.

Main Methods:

  • Utilized host-guest interactions (dibenzo-24-crown-8 and dibenzylammonium salts).
  • Employed metal-ligand coordination interactions (terpyridine-Zn(OTf)2 and 1,2,3-triazole-PdCl2(PhCN)2).
  • Characterized network formation and properties using NMR, UV-vis, DOSY, viscosity, and rheology.

Main Results:

  • Successfully constructed a supramolecular polymer network using three orthogonal interactions.
  • Demonstrated the ability to tune the network topology from monomer to polymer to network structures.
  • Obtained a supramolecular gel at high concentrations, exhibiting stimuli-responsiveness and self-healing.

Conclusions:

  • The developed supramolecular polymer network offers a versatile platform for creating advanced materials.
  • The combination of orthogonal interactions allows for precise control over network architecture.
  • The resulting supramolecular gels possess desirable properties for potential applications in soft robotics and adaptive materials.