Thermogelation of polyrotaxane solutions via hydrophobic interactions

Toshiyuki Kataoka, Masatoshi Kidowaki, Changming Zhao, Takao Nakajima, Yuya Okamoto, 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 Theological measurements. With increasing temperature, these aqueous solutions show sol to gel transition since hydrophobic interaction among methylated CDs. XRD patterns for MePR solution in gel state exhibits several reflections, suggesting that cross-links in MePR hydrogel are formed from crystal structures of CDs.

Original languageEnglish
Number of pages1
Publication statusPublished - 2005 Dec 1
Event54th SPSJ Symposium on Macromolecules - Yamagata, Japan
Duration: 2005 Sep 202005 Sep 22

Conference

Conference54th SPSJ Symposium on Macromolecules
CountryJapan
CityYamagata
Period05/9/2005/9/22

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., Nakajima, T., Okamoto, Y., & Ito, K. (2005). Thermogelation of polyrotaxane solutions via hydrophobic interactions. Paper presented at 54th SPSJ Symposium on Macromolecules, Yamagata, Japan.