Thermogelation of polyrotaxane solutions via hydrophobic interactions

Toshiyuki Kataoka; Masatoshi Kidowaki; Changming Zhao; Takao Nakajima; Yuya Okamoto; Kohzo Ito

Thermogelation of polyrotaxane solutions via hydrophobic interactions

Toshiyuki Kataoka, Masatoshi Kidowaki, Changming Zhao, Takao Nakajima, Yuya Okamoto, 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 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 language	English
Number of pages	1
Publication status	Published - 2005 Dec 1
Externally published	Yes
Event	54th SPSJ Symposium on Macromolecules - Yamagata, Japan Duration: 2005 Sept 20 → 2005 Sept 22

Conference

Conference	54th SPSJ Symposium on Macromolecules
Country/Territory	Japan
City	Yamagata
Period	05/9/20 → 05/9/22

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 = "Thermogelation of polyrotaxane solutions via hydrophobic interactions",

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.",

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

author = "Toshiyuki Kataoka and Masatoshi Kidowaki and Changming Zhao and Takao Nakajima and Yuya Okamoto and Kohzo Ito",

year = "2005",

month = dec,

day = "1",

language = "English",

note = "54th SPSJ Symposium on Macromolecules ; Conference date: 20-09-2005 Through 22-09-2005",

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TY - CONF

T1 - Thermogelation of polyrotaxane solutions via hydrophobic interactions

AU - Kataoka, Toshiyuki

AU - Kidowaki, Masatoshi

AU - Zhao, Changming

AU - Nakajima, Takao

AU - Okamoto, Yuya

AU - Ito, Kohzo

PY - 2005/12/1

Y1 - 2005/12/1

N2 - The aqueous solutions of polyrotaxanes composed of polyethylene glycol and methylated α-CDs were investigated by DSC, X-ray diffraction (XRD), and 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.

AB - 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.

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=33645647843&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645647843&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:33645647843

T2 - 54th SPSJ Symposium on Macromolecules

Y2 - 20 September 2005 through 22 September 2005

ER -

Thermogelation of polyrotaxane solutions via hydrophobic interactions

Abstract

Conference

Keywords

ASJC Scopus subject areas

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