Light-Induced Transformation from Covalent to Supramolecular Polymer Networks

ACS Macro Letters, Journal Year: 2025, Volume and Issue: unknown, P. 169 - 175

Published: Jan. 26, 2025

Stimuli-responsive polymers have demonstrated significant potential in the development of smart materials due to their capacity undergo targeted property changes response external physical or chemical stimuli. However, scales most existing stimuli-responsive polymer systems are mainly focused on three levels: functional units, chain conformations, topologies. Herein, we developed a covalent network (CPN) capable converting into supramolecular (SPN) within bulk directly at scale types. This transformation is enabled by specifically designed moieties that upon UV exposure reveal quadruple hydrogen bonding sites, allowing formation network. network-type transition from CPN SPN induces pronounced intrinsic material properties, including substantially increased breaking elongation, lower Young's modulus, reduced fracture strength, and decreased creep resistance, marking shift stable, rigid structure dynamic, adaptable one. These findings provide new insights design advanced through transformations, opening avenues for applications multifunctional materials.

Language: Английский

Ring‐Toughened Polymer Networks: The Mighty Impact of Specially Designed Rings on Mechanical Properties

Chemistry - A European Journal, Journal Year: 2025, Volume and Issue: unknown

Published: March 3, 2025

Abstract Polymer network materials are gaining significance in daily life and industrial applications. Improving polymer materials’ mechanical properties has long been a focus for chemists scientists. Generally, rings networks viewed as adverse elements leading to reduced performance. In this conceptual article, recent advancements related strategies utilizing specially designed enhance the of summarized discussed. The article concludes by discussing current challenges future prospects field. We aim offer readers an overview ring‐toughened catalyze swift progress burgeoning area.

Language: Английский