Patent ID: 8580906

Claim:
A polyrotaxane comprising a pseudopolyrotaxane, which has a linear molecule and a cyclic molecule(s) in which the linear molecule is included in a cavity (cavities) of the cyclic molecule(s) in a skewered manner, and capping groups, each of which locates at each end of the pseudopolyrotaxane in order to prevent the dissociation of the cyclic molecule(s), wherein the cyclic molecule comprises a group represented by following formula I, a group represented by following formula II, and a group represented by following formula III: -M-A Formula I; -M-B Formula II; and —C Formula III; wherein M represents a structure represented by following formula IV or V, wherein Q represents a linear alkylene or alkenylene group having 1 to 8 carbon atoms, a branched alkylene or alkenylene group having 3 to 20 carbon atoms, an alkylene group obtained by substituting a part of the alkylene or alkenylene group with an —O— bond or an —NH— bond, or an alkylene group obtained by substituting a part of the hydrogen atoms of the alkylene group with at least one selected from the group consisting of a hydroxyl group, a carboxyl group, an acyl group, a phenyl group, a halogen atom and an olefin group; and each of n1 and n2 independently represents 1 to 200; A represents —OX 1 or —NX 2 X 3 , wherein each of X 1 , X 2 and X 3 independently represents a group selected from the group consisting of a hydrogen atom and groups represented by following formulae X-1 to X-7, wherein each of R 1 , R 2 , R 4 and R 5 independently represents a linear alkyl group having 1 to 12 carbon atoms, or a branched or alicyclic alkyl group having 3 to 12 carbon atoms; each of R 6a , R 6b and R 6c independently represents a hydrogen atom, a linear alkyl group having 1 to 12 carbon atoms, or a branched alkyl group having 3 to 12 carbon atoms (at least one of R 6a to R 6c is an alkyl group); R 3 represents a substituent obtained by removing three hydrogen atoms from a linear alkyl group having 1 to 12 carbon atoms or a branched alkyl group having 3 to 12 carbon atoms; at least one of Y 1 to Y 3 represents a group selected from the group consisting of a hydroxyl group, an NH 2 group and an SH group, while the rest of Y 1 to Y 3 are hydrogen atoms; and R 7 represents a photoreactive group; B represents a residue having a group selected from the group consisting of —(OCH 2 CH 2 ) m1 OH wherein m1 represents 1 to 200, —(NHCH 2 CH 2 ) m2 NH 2 wherein m2 represents 1 to 200, —COOX 4 , —SO 3 X 5 , —PO 4 X 6 , and a pyridine ring derivative group represented by formula VI-1 or formula VI-2, wherein symbol * represents that the site where the pyridine ring is bonded may be any of 2- to 6-position; and in the formula VI-2, X 7− represents an ion species selected from the group consisting of Cl − , Br − and I − ; and C represents a group represented by the moiety A and/or moiety B described above: