Increasing attention has been paid to the control of the macromolecular helicity of the main chains for the development of new chiral materials includingasymmetric catalysts, circular polarized luminescent (CPL) materials, and cholesteric materials. Recently, we found that poly(quinoxaline-2,3-diyl)s bearing chiral side chain adopts purely single-handed helical conformations, whose helical chirality can be perfectly switched by the solvents (the solvent-dependent helix inversion). In this paper, we present the development of newly developed chirality-switchable polymeric materials based on the solvent-dependent helix inversion of poly(quinoxaline-2,3-diyl)s.&lt;span style="font-size:10.8333px"&gt; &lt;/span&gt;We will also present the detailed mechanism of the solvent-dependent helix inversion of poly(quinoxaline-2,3-diyl)s, which has been revealed based on the conbination of neutron-scattering measurements and theoretical calculations.

Development of new chirality-switchable polymeric materials based on the solvent-dependent helix inversion of the macromolecular helicity

256th National Meeting (2018)

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