| abstract |
A hydrophobic modified polyrotaxane soluble in an organic solvent is provided. A hydrophobic modified polyrotaxane is provided with a cyclic molecule 7, a linear molecule 6 including the cyclic molecule in a skewered manner, and arranged at both ends of the linear molecule to prevent detachment of the cyclic molecule. And a blocking group 8. The cyclic molecule is a cyclodextrin, and all or part of the hydroxyl group of the cyclodextrin is modified with a trityl group. The degree of modification of the cyclodextrin with the trityl group is 0.02 or more, where 1 is the maximum number of cyclodextrin hydroxyl groups that can be modified. [Selection] Figure 1 |