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Preparation of Monodomain Liquid Crystal Elastomers and Liquid Crystal Elastomer Nanocomposites
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Leeches-Inspired Hydrogel-Elastomer Integration Materials.

Jun-Feng Feng1,2, Jiao-Long Chen1, Kun Guo1

  • 1Chengdu Institute of Biology , Chinese Academy of Sciences , Chengdu 610041 , China.

ACS Applied Materials & Interfaces
|September 15, 2018
PubMed
Summary
This summary is machine-generated.

Researchers developed novel hydrogel-elastomer materials inspired by leeches. These integrated materials exhibit excellent mechanical properties in both wet and dry states, including self-healing capabilities, paving the way for advanced applications.

Keywords:
hydrogel−elastomermicelle cross-linkingmimicryself-healingtough material

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Area of Science:

  • Materials Science
  • Polymer Chemistry

Background:

  • Hydrogels and elastomers are distinct materials with unique properties.
  • Integrating hydrogel and elastomer properties into a single material presents significant challenges.

Purpose of the Study:

  • To synthesize and characterize novel homogeneous materials integrating hydrogel and elastomer functionalities.
  • To mimic the functional properties of leeches through material design.

Main Methods:

  • Free radical polymerization was employed to create the integrated materials.
  • 2-Methoxyethyl acrylate (MEA) was used as the elastomer monomer.
  • Vinyl-functionalized Pluronics served as cross-linkers to introduce hydrogel properties.

Main Results:

  • The Pluronic/PMEA gels achieved a swelling ratio of approximately 210% with good water retention.
  • Wet gels exhibited a compression stress up to 1.6 MPa at 85% strain.
  • Dehydrated gels demonstrated elastomer-like behavior with high tensile strength (1200 kPa), elongation (500%), and compression stress (>22 MPa).
  • The materials displayed self-healing properties.

Conclusions:

  • A novel hydrogel-elastomer integrated material was successfully synthesized.
  • The material exhibits exceptional mechanical performance in both hydrated and dehydrated states.
  • Potential applications include tissue engineering, soft robotics, and biomedical devices.