Reversible stress-responsive material, preparation method, and use thereof

US12338328B2 · kind B2 · utility

Assignees

• Southwest University of Science and Technology · CN
• Sichuan Guanmusi Yang New Material Technology Co LTD · CN

Inventors

• Guanjun Chang · Mianyang, CN
• Li Yang · San Jose, US
• Yewei Xu · Mianyang, CN
• Ying Huang · Shandong, CN
• Rui Rong Yuan · Fort Lee, US
• Mengqi Du · Mianyang, CN

Key dates

• Filing date: Aug 19, 2022
• Grant date: Jun 24, 2025
• Expiry date: Feb 24, 2044

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F267/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A reversible stress-responsive material, a preparation method, and a use thereof are provided. The reversible stress-responsive material has the property of real-time reversible force response at room temperature. When used with crosslinked plastic (high Tg) and rubber (low Tg) polymer materials, the reversible stress-responsive material can significantly enhance the mechanical strength and ductility of covalently cross-linked polymers. the triazolinedione (TAD)-indole click chemistry with the force-induced reversible property is used to construct a force-reversible crosslinked polymer material, and such a force-induced reversible crosslinking method can achieve the breakage and re-forming of covalent crosslinking points at room temperature in a solid state without any external stimuli other than the ambient temperature. This room-temperature force-induced reversible C—N covalent crosslinking can be regarded as an innovative approach to designing a high-toughness polymer material.