Construction of Multifunctional Nanocapsules Based on Column Aromatic Hydrocarbons and Bipyridine
Polymer capsules have excellent properties and functions, and have important applications in the fields of food safety, medicine, catalysis and so on. Covalent self-assembly is a new method for the preparation of polymer capsules in recent years, in which regular molecular capsules are formed by one-step transverse cross-linking of building units and connecting chains in solution. One of the outstanding advantages of covalent self-assembly method is the functional selection of components, and a variety of permutations and combinations may greatly expand the application range of polymer capsules. In this paper, the macrocyclic molecule of column aromatic hydrocarbons was selected as the construction unit, and the bromine was modified by bridging methylene on its side, and cross-linked with the amino flexible chain with bipyridine structure, a kind of multifunctional nanocapsules with the size of about 500 nm, host-guest response and precious metal expansibility were constructed.
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