Synthesis of Polymeric [2]-Catenanes Composed of Interlocked Discrete Cyclic Polymers
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Cyclic polymers have been extensively studied because of their unique physicochemical properties originated from their endless ring conformation. Discrete cyclic polymers can be synthesized via the combination of iterative exponential growth, end-group functionalization and intramolecular cyclization. In addition, polymer catenanes, composed of interlocked cyclic polymers, were prepared by the template threading approach. Using the linear convergent method, functional monomers were precisely placed into polymer chains. In this research terpyridyl functional group were placed into polymer chains to make metal-ligand interaction between two polymers. Because metal-ligand interaction connects two polymers, catenane synthesis can be performed efficiently.