Complementary Nucleobase-Containing Double-Network Elastomers with High Energy Dissipation and Room-Temperature Fast...

Area of Science:

• Materials Science
• Polymer Chemistry
• Biomaterials

Background:

• Elastomers are crucial in industrial applications like tires and seals.
• Existing elastomers face challenges in balancing high energy dissipation with rapid recovery.
• Structural optimization is needed for enhanced elastomer performance.

Purpose of the Study:

• To fabricate double-network (DN) elastomers with high energy dissipation and fast room-temperature recovery.
• To explore the use of supramolecular polymers based on complementary nucleobases in elastomer design.
• To demonstrate the potential of these DN elastomers as cushioning materials.

Main Methods:

• Fabrication of DN elastomers using complementary adenine and thymine supramolecular polymers as the first network.
• Covalent cross-linking of a soft polymer to form the second network.
• Utilizing photopolymerization for efficient network preparation.

Main Results:

• The synthesized DN elastomer exhibited high energy dissipation capabilities.
• Fast room-temperature recovery was achieved, attributed to independent network behavior.
• The DN elastomer demonstrated excellent performance as a cushioning material under continuous impact.

Conclusions:

• A novel approach for creating DN elastomers with superior energy dissipation and recovery was presented.
• The use of multiple hydrogen bonds from complementary nucleobases is a viable strategy for elastomer design.
• These advanced elastomers show promise for applications requiring impact absorption and resilience.