Creation and functional development of stress-responsive supramolecular materials

环糊精(CD)具有许多吸引人的功能，如分子识别、水解催化活性、聚合活性等。作者利用聚合物侧链之间的相互作用来构建新型的刺激响应型超分子材料。首先，通过主-客体相互作用成功制备了刺激响应型溶胶-凝胶开关材料。分别选择偶氮苯和二茂铁衍生物作为光响应分子和氧化还原响应分子。作者获得了具有氧化还原响应性和主客体相互作用导致的自愈性能的超分子材料。此外，另一种含有镉包合物的自愈合材料对切割表面显示出选择性的自愈性能。具有刺激响应性基团的化学交联水凝胶在外界刺激下表现出弯曲行为，这是交联剂控制包合物比例的函数。

Cyclodextrins (CDs) have a lot of attractive functions, molecular recognition, hydrolysis catalytic activity, polymerization activity, etc. The author focus on the construction of innovative stimuli responsive supramolecular materials using the interaction between polymer side chains. First, stimuli-responsive sol-gel switching materials were successfully prepared through host-guest interactions. Azobenzene and ferrocene derivatives were chosen as photo and redox-responsive molecules, respectively. The author obtained supramolecular materials with redox-responsive and self-healing properties caused by host-guest interaction. Furthermore, another self-healing material with CD inclusion complexes showed selective self-healing properties for cut-surfaces. The chemical crosslinked hydrogel with stimuli-responsive groups showed the bending behavior by external stimuli, which controlled the ratio of inclusion complexes as a function of crosslinkers.