Patent ID: 8450415
Filing Date: 2013-05-28
Classification: C08B,C08G

Abstract:
1. A crosslinked polyrotaxane comprising at least two molecules of polyrotaxane, in which a linear molecule is included in cavities of cyclodextrin molecules in a skewered manner, wherein the linear molecule has at each end a capping group to prevent the dissociation of the cyclodextrin molecules, the at least two molecules of polyrotaxane are crosslinked each other through chemical bonding, and a part of hydroxyl groups of the cyclodextrin molecules is substituted with a non-ionic group(s) selected from the group consisting of a —OR group, a —O—R′—X group, a —O—CO—NH—R 1 group, a —O—CO—R 2 group, a —O—Si—(R 3 ) 3 group, and a —O—CO—O—R 4 group, wherein R is a linear or branched alkyl group having 1-12 carbons, a linear or branched alkyl group having 2-12 carbons and at least one ether group, a cycloalkyl group having 3-12 carbons, a cycloalkyl ether group having 2-12 carbons or a cycloalkyl thioether group having 2-12 carbons; R′ is a group resulting from removal of one hydrogen in a linear or branched alkyl group having 1-12 carbons, a group resulting from removal of one hydrogen in a linear or branched alkyl group having 2-12 carbons and at least one ether group, a group resulting from removal of one hydrogen in a cycloalkyl group having 3-12 carbons, a group resulting from removal of one hydrogen in a cycloalkyl ether group having 2-12 carbons or a group resulting from removal of one hydrogen in a cycloalkyl thioether group having 2-12 carbons, and X is OH, NH R R each of R R