Self-Healing and Reprocessable Terpene Polysiloxane-Based Poly(thiourethane-urethane) Material with Reversible...

Area of Science:

• Polymer Chemistry
• Materials Science
• Organic Chemistry

Background:

• Polyurethane materials face degradation from solvents, collisions, and wear.
• Degradation leads to resource waste and increased costs.
• Need for reparative and preventative measures in polymer applications.

Purpose of the Study:

• To develop novel self-healing and reprocessable polymer materials.
• To investigate the potential of polysiloxane-based poly(thiourethane-urethane) materials.
• To explore the role of thiourethane bonds and terpene derivatives in material durability.

Main Methods:

• Synthesis of a novel polysiloxane with isobornyl acrylate and thiol side groups.
• Preparation of poly(thiourethane-urethane) materials via click reaction.
• Evaluation of material healing and reprocessing capabilities.

Main Results:

• Successfully synthesized poly(thiourethane-urethane) materials with self-healing properties.
• Demonstrated efficient reprocessing of the developed materials.
• Isobornyl acrylate facilitated segment migration, enhancing thiourethane bond exchange and recyclability.

Conclusions:

• Thiourethane bonds enable effective polymer healing and reprocessing.
• Terpene derivative-based polysiloxanes show promise for advanced materials.
• The study highlights the potential of thiourethane as a dynamic covalent bond for sustainable polymers.