Metallacycle-crosslinked supramolecular polymers constructed by amino–YNE click reaction with enhanced mechanical properties

Supramolecular polymers based on supramolecular coordination complexes (SCCs) have received extensive attention because of their good stimulus responsiveness, processability and other properties. Herein, we report metallacycle-crosslinked supramolecular polymers via amino–yne click reaction, which were employed as well-performing elastomer materials. The supramolecular polymers cross-linked by the metallacycle not only maintained the aggregation induced emission (AIE) properties of the metallacycle, which were used to detect nitroaromatic explosives, but also had enhanced mechanical strength and toughness and exhibited elastomeric properties. This study provides a feasible strategy for the preparation of metallacycle-based supramolecular polymers with better mechanical properties.