Abstract
Thermoreversible hydrogels of the aqueous solutions of polyrotaxanes composed of polyethylene glycol and methylated α-CDs were investigated by DSC, X-ray diffraction, and rheological measurements. With increasing temperature, these aqueous solutions show sol to gel transition since hydrophobic interaction among α-CDs leads to aggregation of freely movable α-CDs on a PEG chain. These solutions have several kinds of gel formation mechanisms which strongly depend on the substitution ratio of methyl groups.
| Original language | English |
|---|---|
| Title of host publication | Polymer Preprints, Japan |
| Pages | 852 |
| Number of pages | 1 |
| Volume | 54 |
| Edition | 1 |
| Publication status | Published - 2005 |
| Externally published | Yes |
| Event | 54th SPSJ Annual Meeting 2005 - Yokohama Duration: 2005 May 25 → 2005 May 27 |
Other
| Other | 54th SPSJ Annual Meeting 2005 |
|---|---|
| City | Yokohama |
| Period | 05/5/25 → 05/5/27 |
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Keywords
- Cyclodextrins
- Differential scanning calorimetry
- Polyrotaxanes
- Rheology
- Slide-ring gels
- Thermoreversible gels
ASJC Scopus subject areas
- Engineering(all)
Cite this
Gel formation mechanisms of thermo-sensitive polyrotaxane solutions. / Kataoka, Toshiyuki; Kidowaki, Masatoshi; Nakajima, Takao; Nagao, Yohei; Changming, Zhao; Ito, Kohzo.
Polymer Preprints, Japan. Vol. 54 1. ed. 2005. p. 852.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Gel formation mechanisms of thermo-sensitive polyrotaxane solutions
AU - Kataoka, Toshiyuki
AU - Kidowaki, Masatoshi
AU - Nakajima, Takao
AU - Nagao, Yohei
AU - Changming, Zhao
AU - Ito, Kohzo
PY - 2005
Y1 - 2005
N2 - Thermoreversible hydrogels of the aqueous solutions of polyrotaxanes composed of polyethylene glycol and methylated α-CDs were investigated by DSC, X-ray diffraction, and rheological measurements. With increasing temperature, these aqueous solutions show sol to gel transition since hydrophobic interaction among α-CDs leads to aggregation of freely movable α-CDs on a PEG chain. These solutions have several kinds of gel formation mechanisms which strongly depend on the substitution ratio of methyl groups.
AB - Thermoreversible hydrogels of the aqueous solutions of polyrotaxanes composed of polyethylene glycol and methylated α-CDs were investigated by DSC, X-ray diffraction, and rheological measurements. With increasing temperature, these aqueous solutions show sol to gel transition since hydrophobic interaction among α-CDs leads to aggregation of freely movable α-CDs on a PEG chain. These solutions have several kinds of gel formation mechanisms which strongly depend on the substitution ratio of methyl groups.
KW - Cyclodextrins
KW - Differential scanning calorimetry
KW - Polyrotaxanes
KW - Rheology
KW - Slide-ring gels
KW - Thermoreversible gels
UR - http://www.scopus.com/inward/record.url?scp=33645579368&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33645579368&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33645579368
VL - 54
SP - 852
BT - Polymer Preprints, Japan
ER -