Sol-gel transitions of thermosensitive polyrotaxane solutions

Toshiyuki Kataoka; Masatoshi Kidowaki; Changming Zhao; Kohzo Ito

Sol-gel transitions of thermosensitive polyrotaxane solutions

Toshiyuki Kataoka, Masatoshi Kidowaki, Changming Zhao, Kohzo Ito

Research output: Contribution to conference › Paper › peer-review

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 language	English
Number of pages	1
Publication status	Published - 2006 Oct 18
Externally published	Yes
Event	55th SPSJ Annual Meeting - Nagoya, Japan Duration: 2006 May 24 → 2006 May 26

Conference

Conference	55th SPSJ Annual Meeting
Country/Territory	Japan
City	Nagoya
Period	06/5/24 → 06/5/26

Keywords

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

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Sol-gel transitions of thermosensitive polyrotaxane solutions",

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.",

keywords = "Cyclodextrin, Differential scanning calorimetry, Polyrotaxane, Rheology, Thermoreversible gels, X-ray diffraction",

author = "Toshiyuki Kataoka and Masatoshi Kidowaki and Changming Zhao and Kohzo Ito",

year = "2006",

month = oct,

day = "18",

language = "English",

note = "55th SPSJ Annual Meeting ; Conference date: 24-05-2006 Through 26-05-2006",

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TY - CONF

T1 - Sol-gel transitions of thermosensitive polyrotaxane solutions

AU - Kataoka, Toshiyuki

AU - Kidowaki, Masatoshi

AU - Zhao, Changming

AU - Ito, Kohzo

PY - 2006/10/18

Y1 - 2006/10/18

N2 - 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.

AB - 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.

KW - Cyclodextrin

KW - Differential scanning calorimetry

KW - Polyrotaxane

KW - Rheology

KW - Thermoreversible gels

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=33749655773&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33749655773&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33749655773

T2 - 55th SPSJ Annual Meeting

Y2 - 24 May 2006 through 26 May 2006

ER -

Sol-gel transitions of thermosensitive polyrotaxane solutions

Abstract

Conference

Keywords

ASJC Scopus subject areas

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