STAR-SHAPED VINYL ETHER POLYMER

摘要

Provided are a vinyl ether polymer which can exert temperature responsiveness even in the case of being supported on a highly hydrophobic fibrous substrate, an agent for controlling hydrophilicity and hydrophobicity containing the polymer, a method for controlling hydrophilicity and the hydrophobicity using the polymer, and a polymer-substrate composite having the polymer supported on a substrate.;A star-shaped vinyl ether polymer which includes a central core and an arm portion bonded to the central core and in which the arm portion includes a repeating unit derived from a vinyl ether monomer and a structure represented by the following Formula (1) is included in the molecule:;—Y—Ar1—N═N—Ar2   (1);in which Y represents an ether bond, a thioether bond, a group —NH—, or a group —OR1—* (R1 represents an alkylene group, * represents a position bonded to Ar1 in Formula (1)), Ar1 represents a substituted or unsubstituted divalent aromatic hydrocarbon group, and Ar2 represents a substituted or unsubstituted monovalent aromatic hydrocarbon group].

主权项

1. A star-shaped vinyl ether polymer, comprising a central core and an arm portion bonded to the central core,
wherein: the arm portion comprises a repeating unit derived from a vinyl ether monomer; and the star-shaped vinyl ether polymer comprises a structure represented by the following Formula (1):
—Y—Ar1—N═N—Ar2   (1); Y represents an ether bond, a thioether bond, a group —NH—, or a group —OR1—*; R1 represents an alkylene group; * represents a position bonded to Ar1 in Formula (1); Ar1 represents a substituted or unsubstituted divalent aromatic hydrocarbon group; and Ar2 represents a substituted or unsubstituted monovalent aromatic hydrocarbon group.