Selective and active transportation of guest molecules in sliding-host gel

我们对环糊精进行了化学修饰，使其成为稀疏聚轮烷上的滑动主体分子。通过在溶液中化学交联改性聚轮烷，制备了一种新型的滑动凝胶--“滑动主体凝胶”，并对其包结性能进行了评价。在此基础上，利用两种客体分子在滑动-主体凝胶中的交换实现了客体分子的主动传输。我们发现，可逆凝胶化的聚轮烷与滑动主机和滑动客体的光异构化的客体分子。

We chemically modified cyclodextrins as sliding host molecules on the sparse polyrotaxane. By chemically cross-linking the modified polyrotaxane in the solution, we realized new sliding gels named "sliding-host gel", and estimated the inclusion properties of the sliding-host. Then, we realized active transportation of guest molecules using exchange of two kinds of guests in sliding-host gel. We found reversible gelation of polyrotaxane with sliding hosts and sliding guests by photoisomerization of the guest molecules.