rotaxanecrosslinked
Rotaxanecrosslinked describes polymeric materials in which rotaxane units function as crosslinks between polymer chains. These crosslinks are mechanically interlocked structures rather than conventional covalent bonds, placing rotaxanecrosslinked systems within the broader class of mechanically interlocked networks (MINs) or rotaxane-based crosslinked polymers. The concept combines polymer science with molecular mechanical motion to impart dynamic properties.
In typical designs, a rotaxane crosslinker consists of a dumbbell-shaped axle threaded through a macrocycle, with
Synthesis methods include incorporating pre-assembled rotaxane crosslinkers into a forming network via click chemistry (for example
Properties often include enhanced toughness, improved impact resistance, and programmable viscoelastic behavior. The shuttling motion can
Challenges include synthetic complexity, cost, and stability of interlocked motifs during processing or aging. Achieving uniform