Sol-gel transitions of thermosensitive polyrotaxane solutions

Toshiyuki Kataoka, Masatoshi Kidowaki, Changming Zhao, Kohzo Ito

Research output: Contribution to conferencePaper

Abstract

The aqueous solutions of polyrotaxanes composed of polyethylene glycol and methylated α-CDs were investigated by DSC, X-ray diffraction (XRD), and rheological measurements. With increasing temperature, these aqueous solutions show sol to gel transition since hydrophobic interaction among methylated CDs. Rheological properties of MePR solutions revieals that the solutions show critical behavior near sol-gel transition threashold. The scaling exponent of this solution was close to the value predicted by the gel percolation theory.

Original languageEnglish
Number of pages1
Publication statusPublished - 2006 Oct 18
Externally publishedYes
Event55th SPSJ Annual Meeting - Nagoya, Japan
Duration: 2006 May 242006 May 26

Conference

Conference55th SPSJ Annual Meeting
CountryJapan
CityNagoya
Period06/5/2406/5/26

Keywords

  • Cyclodextrin
  • Differential scanning calorimetry
  • Polyrotaxane
  • Rheology
  • Thermoreversible gels
  • X-ray diffraction

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Kataoka, T., Kidowaki, M., Zhao, C., & Ito, K. (2006). Sol-gel transitions of thermosensitive polyrotaxane solutions. Paper presented at 55th SPSJ Annual Meeting, Nagoya, Japan.