Boosting Energy Dissipation and Degradation Behaviors: Cation‐π Interactions as a Key to Stimuli Responsive Epoxy Adhesives

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 26, 2025

Abstract Epoxy resins, widely recognized for their stable cross‐linked structures and extensive use as adhesives, face a fundamental challenge in balancing high‐performance attributes with dynamic functionalities. To address this, novel strategy leveraging synergistic effects is proposed to amplify bonds within the resin network. Specifically, an ionic monomer featuring imidazole cations benzene rings synthesized combined four‐arm thiol‐containing ester groups, forming network through dual curing process. This design endows thermoset multiple stimuli‐responsive The groups are pivotal enabling resin's degradability reprocessability, while non‐covalent cation‐π interactions significantly enhance energy dissipation, resulting superior mechanical properties. Notably, not only lower barrier of epoxy thermal reaction but also accelerate hydrolysis via hydrogen bonding. work demonstrates tunable responsive adhesive cyclic features, offering promising candidate functional applications devices beyond. innovative integration provides versatile platform designing next‐generation resins both high performance full life‐cycle sustainability.

Language: Английский

Biphenylation, ester-free and stepwise reaction strategy of thiol-epoxy crosslinking network for durable thermally and hygrothermally resistant electronic packaging

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 162891 - 162891

Published: April 1, 2025

Language: Английский