Supramolecular Block Copolymers with Cucurbit[8]uril in Water

摘要

Supramolecular polymers have expanded the scope of polymer science,allowing for the design and development of stimuli-responsive and dynamic materials.Most prominently,hydrogen-bonding arrays and metal-ligand interactions have been used for the creation of supramolecular polymers.Utilizing metal coordinate bonds,block copolymers can be formed that are stable even in aqueous media.In these instances,however,the metal-ligand interactions employed forfeit much of the dynamic nature of reversible binding,and their incorporation may curtail certain biological applications.Multiple hydrogen-bonding motifs in linear arrays have been utilized to achieve high association constants in common organic solvents;however,they have not been replicated in aqueous environments as the water molecules compete for the hydrogen-bonding sites.