2022 Volume 32 Issue 2 Pages 82-85
Polyrotaxane, in which cyclic molecules slide along polymer axis, has been applied to various functional devices and materials because of the unique molecular structure and dynamics. We investigated the nano-strucutre and dynamics of polyrotaxane in solution by means of small-angle neutron scattering (SANS) and quasi-elastic neutron scattering (QENS) with contrast variation technique. The contrast variation SANS studies verified the topological connection between the cyclic molecules and axial polymer in polyrotaxane. We succeeded in quantifying the molecular dynamics of the cyclic molecules and polymer axis by QENS measurements.
