A new method of light-powered dissipative supramolecular polymerization is established, in which supramolecular polymerization is implemented in the far-from-equilibrium state. A bifunctional monomer containing two viologen moieties was designed. Upon inputting energy by light, the system was driven far from equilibrium, and the monomers were photoreduced and activated to form supramolecular polymers driven by 2∶1 host–guest complexation of the viologen cation radical and cucurbit[8]uril. As the system returned to equilibrium, the supramolecular polymers depolymerized spontaneously by air oxidation. This method works in both linear and in cross-linked supramolecular polymerization. The strategy of light-powered dissipative supramolecular polymerization is anticipated to have potential in the fabrication of functional supramolecular materials, especially in creating novel “living” materials.

中文翻译：

---

光驱动的耗散超分子聚合

建立了一种光动力耗散超分子聚合的新方法，其中超分子聚合是在远离平衡状态下进行的。设计了包含两个紫精部分的双功能单体。在通过光输入能量后，系统被驱使远离平衡状态，单体被光还原并活化，从而形成2：1主客体络合物，由紫精阳离子自由基和葫芦[8] uril驱动。当系统恢复平衡时，超分子聚合物通过空气氧化自发解聚。该方法适用于线性和交联的超分子聚合。预计光动力耗散性超分子聚合策略在功能性超分子材料的制造中具有潜力，