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Sadaki Samitsu, Jun Araki, Toshiyuki Kataoka and Kohzo Ito, “New solvent for polyrotaxane. II. Dissolution behavior of polyrotaxane in ionic liquids and preparation of ionic-liquid-containing slide-ring gel”, Journal of Polymer Science: Part B: Polymer Physics, 44, 1985-1994(2006).
https://onlinelibrary-wiley-com.utokyo.idm.oclc.org/doi/10.1002/polb.20849