[21p-234B-1~8] 6.4 Thin films and New materials

[21p-234B-6] Thin film morphology of high inclusion ratio polyrotaxane on HOPG

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

Keywords:polyrotaxane, thin film, self-assembly

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 high inclusion ratio polyrotaxane took stretched rod-like conformation using small angle X-ray scattering (SAXS) and dynamic light scattering (DLS). In this research, we compared surface of a thin film of a series of polyrotaxane with various inclusion ratio on HOPG. It was found thata polyrotaxane with high inclusion ratio showed an aligned periodicmorphology with a distance of 6 nm. It was also found that solution concentration needed to be above 0.5×10^-4wt% to form line morphologies.