Intraphase separation and gelation of methylated polyrotaxane solutions

Toshiyuki Kataoka; Masatoshi Kidowaki; Changming Zhao; Kohzo Ito

Intraphase separation and gelation of methylated 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
Pages	4549-4550
Number of pages	2
Publication status	Published - 2006 Dec 1
Externally published	Yes
Event	55th Society of Polymer Science Japan Symposium on Macromolecules - Toyama, Japan Duration: 2006 Sept 20 → 2006 Sept 22

Conference

Conference	55th Society of Polymer Science Japan Symposium on Macromolecules
Country/Territory	Japan
City	Toyama
Period	06/9/20 → 06/9/22

Keywords

Cyclodextrin
Microphase separation
Polyrotaxane
Rheology
Slide-ring gel
Thermoreversible gel

ASJC Scopus subject areas

Engineering(all)

Cite this

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title = "Intraphase separation and gelation of methylated 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, Microphase separation, Polyrotaxane, Rheology, Slide-ring gel, Thermoreversible gel",

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

year = "2006",

month = dec,

day = "1",

language = "English",

pages = "4549--4550",

note = "55th Society of Polymer Science Japan Symposium on Macromolecules ; Conference date: 20-09-2006 Through 22-09-2006",

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TY - CONF

T1 - Intraphase separation and gelation of methylated polyrotaxane solutions

AU - Kataoka, Toshiyuki

AU - Kidowaki, Masatoshi

AU - Zhao, Changming

AU - Ito, Kohzo

PY - 2006/12/1

Y1 - 2006/12/1

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 - Microphase separation

KW - Polyrotaxane

KW - Rheology

KW - Slide-ring gel

KW - Thermoreversible gel

UR - http://www.scopus.com/inward/record.url?scp=33846126975&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33846126975&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33846126975

SP - 4549

EP - 4550

T2 - 55th Society of Polymer Science Japan Symposium on Macromolecules

Y2 - 20 September 2006 through 22 September 2006

ER -

Intraphase separation and gelation of methylated polyrotaxane solutions

Abstract

Conference

Keywords

ASJC Scopus subject areas

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