Synthesis of Poly(quinoxaline-2,3-diyl)s with a Sequencecontrolled Terquinoxaline Core through Bidirectional Living Polymerization and Their CPL Properties

摘要

Much attention has been paid to helical macromolecules because of their unique properties and functions. We have found that poly(quinoxaline-2,3-diyl)s (PQXs) bearing chiral side chains exhibit a solvent-dependent helix inversion and serve as chirality switchable scaffolds for chiral catalysts1 and circularly polarized luminescent (CPL) materials.2 However, the synthesis of a PQX with a precise monomer sequence has been limited. Herein, we report the synthesis of PQXs containing an ABA terquinoxaline core through bidirectional living polymerization.