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Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

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The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
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  9. Wearable Materials
  11. Thioether-functionalized Self-healing Polyolefins For Flexible Conductors

Thioether-Functionalized Self-Healing Polyolefins for Flexible Conductors

Mingjun Chi1,2, Lulu Sun3, Masayoshi Nishiura1,4

  • 1Advanced Catalysis Research Group, RIKEN, Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan.

Journal of the American Chemical Society
|June 16, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

Researchers developed new self-healing polyolefin elastomers for flexible electronics. These materials offer robust mechanical properties, strong adhesion to gold nanoparticles, and tunable characteristics for advanced applications.

Area of Science:

  • Materials Science
  • Polymer Chemistry
  • Nanotechnology

Background:

  • Flexible conductors are crucial for wearable electronics and soft robotics.
  • Existing elastomeric substrates often lack a combination of mechanical robustness, adhesion, and self-healing properties.

Purpose of the Study:

  • To synthesize novel polyolefin-based elastomers with multiple functionalities.
  • To explore their potential as advanced substrates for flexible electronic applications.

Main Methods:

  • One-pot, scandium-catalyzed copolymerization of ethylene with thiophenyl-substituted propylenes.
  • Sequence-controlled synthesis to tune material properties.
  • Investigation of sulfur-gold interactions for nanoparticle adhesion.

Main Results:

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  • Developed phenylthio-substituted polyolefin copolymers with high toughness and elasticity.
  • Demonstrated intrinsic self-healing capabilities in the synthesized elastomers.
  • Achieved strong adhesion to gold nanoparticles, enhancing conductor durability.

Conclusions:

  • Catalyst-controlled copolymerization of functionalized olefins offers a pathway to multifunctional polyolefin materials.
  • These novel elastomers show significant promise for flexible electronics and soft robotics.
  • The tunable properties and self-healing nature make them ideal for demanding applications.