Swelling and shrinking behavior of Slide-Ring gel

Rumiko Kasahara, Kentaro Kayashima, Yoshiyuki Amemiya, Yasushi Okumura, Kohzo Ito

研究成果: 会議への寄与タイプ学会誌査読

抄録

The slide-ring gel is synthesized from the polyrotaxane in which a poly(ethylene glycol) chain with large molecular weight is sparsely included by α-cyclodextrins. By chemically cross-linking α-cyclodextrins contained in the polyrotaxanes in solutions, the polymer chains with bulky end groups are topologically interlocked by figure-of-eight cross-links. Therefore, the polymer chains freely pass through the cross-links acting like pulleys, which is supposed to automatically equalize the nanoscopic heterogeneity in structure and stress. In this study, we immersed a slide-ring gel in water 2 hours after the initiation of the reaction, and observed that the gel swelled to ca. 8,000 times the dry weight. These volume changes by a change of the solvent composition (acetone/water mixture) were reversible without first order volume transition unlike conventional electrolyte chemical gels.

本文言語英語
ページ数1
出版ステータス出版済み - 12月 1 2005
外部発表はい
イベント54th SPSJ Annual Meeting 2005 - Yokohama, 日本
継続期間: 5月 25 20055月 27 2005

その他

その他54th SPSJ Annual Meeting 2005
国/地域日本
CityYokohama
Period5/25/055/27/05

!!!All Science Journal Classification (ASJC) codes

  • 工学(全般)

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