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Related Concept Videos

Classification and Mechanical Properties of Synthetic Polymers01:28

Classification and Mechanical Properties of Synthetic Polymers

Synthetic polymers are classified as elastomers, fibers, or plastics based on their crystallinity. Crystallinity, the degree of long-range order in the solid state, influences the mechanical properties (stretching or contracting) of elastomers. Elastomers are flexible polymers that can expand or contract easily upon the application of an external force. They have numerous crosslinks that pull them back into their original shape when stress is removed. Silicones, for instance, are highly elastic...
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Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...

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Updated: Jun 17, 2026

A Fabrication Method for Highly Stretchable Conductors with Silver Nanowires
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Quadruple Hydrogen-Bonds Engineering for Intrinsically Stretchable and Healable Semiconducting Polymers.

Yuanhe Gu1,2, Sichun Wang1, Yiran Liu3

  • 1Laboratory of Molecular Materials and Devices, College of Smart Materials and Future Energy, Fudan University, Shanghai, P.R. China.

Angewandte Chemie (International Ed. in English)
|June 16, 2026
PubMed
Summary

Researchers developed stretchable and healable semiconducting polymers using a novel quadruple hydrogen-bonds strategy. This breakthrough enhances charge-carrier mobility and enables robust, self-healing flexible electronics.

Keywords:
healingintrinsic stretchabilitymobilityorganic thin film transistorssemiconducting polymers

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Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Organic Electronics

Background:

  • Developing intrinsically stretchable and healable semiconducting polymers is crucial for advanced flexible electronics.
  • Integrating high charge-carrier mobility with stretchability and healability presents significant challenges in materials design.

Purpose of the Study:

  • To engineer high-performance semiconducting polymers that are both stretchable and healable.
  • To overcome the limitations of current materials in flexible electronic applications.

Main Methods:

  • A "quadruple-hydrogen-bonds end-capping" strategy was employed to create a unique supramolecular architecture.
  • Incorporation of quadruple hydrogen-bonds between end-capping units and alkyl spacers within the polymer backbone.

Main Results:

  • The designed polymer architecture demonstrated enhanced crystallinity and ordered packing, reducing π-π stacking distance.
  • Achieved superior stretchability with retained molecular ordering during stretching and efficient self-healing properties.
  • Exhibited a >2-fold increase in charge-carrier mobility, stable performance under strain, and high mobility recovery after healing.

Conclusions:

  • The quadruple hydrogen-bonds end-capping strategy effectively integrates high electrical performance, mechanical stretchability, and healing ability.
  • This molecular design approach offers a viable pathway for creating next-generation organic electronics.
  • The developed semiconducting polymers show promise for scalable, fully stretchable transistor arrays.