[18p-PA2-1~20] 6.4 Thin films and New materials

[18p-PA2-15] Observation of Rodlike Polyrotaxane by Atomic Force Microscope

〇(M2)Riki Masuda¹, Shuntaro Uenuma¹, Rina Maeda¹, Koich Mayumi¹, Hideaki Yokoyama¹, Kohzo Ito¹ (1.Univ. of Tokyo)

Keywords:polyrotaxane, cyclodextrin, atomic force microscope

Polyrotaxanes are supramolecules in which an axis polymer penetrates a large number of ring molecules and the ends are blocked with bulky molecules. It was found that polyrotaxanes consisting of poly(ethylene glycol) and highly stacked α-cyclodextrin could be chemically modified and their molecular weight showed a low polydispersity index. Chemically modified polyrotaxanes were found to take stretched rod-like conformation by wide angle X-ray diffraction, small angle X-ray scattering, and dynamic light scattering. In this research, we discovered that trimethylsilylated modified polyrotaxane is oriented by interaction with HOPG substrate. A single layer of polyrotaxane formed by spin coating was directly observed with an atomic force microscope.