Preparation of a "sliding graft copolymer", an organic solvent-soluble polyrotaxane containing mobile side chains, and its application for a crosslinked elastomeric supramolecular film

Jun Araki; Toshiyuki Kataoka; Kohzo Ito

doi:10.1039/b715231k

Preparation of a "sliding graft copolymer", an organic solvent-soluble polyrotaxane containing mobile side chains, and its application for a crosslinked elastomeric supramolecular film

Soft Matter. 2008 Jan 22;4(2):245-249. doi: 10.1039/b715231k.

Authors

Jun Araki¹, Toshiyuki Kataoka², Kohzo Ito¹

Affiliations

¹ Department of Advanced Material Science, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-City, Chiba 277-8562, Japan. jun@shinshu-u.ac.jp kohzo@molle.k.u-tokyo.ac.jp and CREST, Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan.
² Department of Advanced Material Science, Graduate School of Frontier Sciences, University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-City, Chiba 277-8562, Japan. jun@shinshu-u.ac.jp kohzo@molle.k.u-tokyo.ac.jp.

PMID: 32907235
DOI: 10.1039/b715231k

Abstract

A novel "sliding graft copolymer" (SGC), in which many linear poly-ε-caprolactone (PCL) side chains are bound to cyclodextrin rings of a polyrotaxane, was prepared by ring-opening polymerization of ε-caprolactone initiated by hydroxyl groups of the polyrotaxane. An amorphous, flexible, and sufficiently tough elastomer film was prepared by crosslinking the obtained SGC-a supramolecule possessing a number of mobile side chains-with hexamethylene diisocyanate (HMDI).