The geometrical conception and current synthetic challenges of topological polymer chemistry will be discussed.  By introducing a systematic classification process for polymer chain topologies, a variety of novel multicyclic macromolecular constructions have now been rationally constructed by using current synthetic protocols.  In particular, cyclic and multicyclic polymer products are effectively produced by an electrostatic polymer self-assembly of telechelic precursors that contain cyclic ammonium salt groups accompanying polyfunctional carboxylate counteranions and the subsequent covalent conversion through the ring-opening or through the ring-emitting reaction of the cyclic ammonium salt groups by carboxylate counteranions (ESA-CF process).  Furthermore, the ESA-CF process, in conjunction with effective linking/cleaving chemistry (including the metathesis condensation (clip) and alkyne-azide addition (click) reactions), has been demonstrated as a new synthetic protocol for unprecedented multicyclic macromolecular topologies.

Topological polymer chemistry: A cyclic approach toward novel macromolecular constructions and functions

245th National Meeting (2013)

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