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.
|Number of pages||1|
|Publication status||Published - Dec 1 2005|
|Event||54th SPSJ Annual Meeting 2005 - Yokohama, Japan|
Duration: May 25 2005 → May 27 2005
|Other||54th SPSJ Annual Meeting 2005|
|Period||5/25/05 → 5/27/05|
All Science Journal Classification (ASJC) codes