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 |
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Pages | 852 |
Number of pages | 1 |
Publication status | Published - 2005 |
Externally published | Yes |
Event | 54th SPSJ Annual Meeting 2005 - Yokohama, Japan Duration: 2005 May 25 → 2005 May 27 |
Conference
Conference | 54th SPSJ Annual Meeting 2005 |
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Country/Territory | Japan |
City | Yokohama |
Period | 05/5/25 → 05/5/27 |
Keywords
- Cyclodextrins
- Differential scanning calorimetry
- Polyrotaxanes
- Rheology
- Slide-ring gels
- Thermoreversible gels
ASJC Scopus subject areas
- Engineering(all)