Dynamic cross-linked topological network reconciles the longstanding contradictory properties of polymers.

ABSTRACT: There is usually a trade-off between high-tensile properties and processability in polymers because the mechanisms of these properties are mutually exclusive. Here, we design a chemically coupled four-arm dynamic polymer cross-link site to overcome this challenge. By concurrently increasing cross-link sites and dynamic bond contents, this approach fabricates polymer networks with high cross-link density yet low processing temperature, challenging the conventional structure-property relationship where cross-linking inherently limits plasticity. Notably, the material demonstrates remarkable processability, evidenced by the ratio of G'_max to G'_min with a temperature differential (ΔT) of 120°C (which signifies the soft-to-hard transition

SUBMITTER: Wu Z 

PROVIDER: S-EPMC11922047 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature