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Thermally Induced Localization of Cyclodextrins in a Polyrotaxane Consisting of β-Cyclodextrins and Poly(ethylene glycol)−Poly(propylene glycol) Triblock Copolymer
Abstract
A polyrotaxane, in which many β-cyclodextrins (β-CDs) are threaded onto a triblock copolymer of poly(ethylene glycol) (PEG) and poly(propylene glycol) (PPG) capped with fluorescein-4-isothiocyanate (FITC), was synthesized as a model of stimuli-responsive molecular assemblies for nanoscale devices. Coupling of FITC with the terminal amino groups in the polypseudorotaxane was performed in DMF at 5 °C. Under these conditions, a side reaction between the hydroxyl groups of β-CD and FITC was prevented. The interaction of the β-CDs with terminal FITC moieties in the polyrotaxane was significantly observed at low temperature. However, the interaction of the β-CDs with the PPG segment was observed with increasing temperature. On the basis of these results, it is concluded that the majority of the β-CDs move toward the PPG segment with increasing temperature although some β-CDs may reside on the PEG segments.
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Citations
Cites
Introduction and General Overview of Cyclodextrin Chemistry
Szejtli, J. (1998) · Chemical Reviews · doi:10.1021/cr970022c · Cited by 5,016
Cited by
Cyclodextrin Rotaxanes and Polyrotaxanes
Wenz, G., Han, B.-H., & Müller, A. (2006) · Chemical Reviews · doi:10.1021/cr970027+ · Cited by 1,243
Harada, A., Hashidzume, A., Yamaguchi, H., & Takashima, Y. (2009) · Chemical Reviews · doi:10.1021/cr9000622 · Cited by 892
Li, J., & Loh, X. J. (2008) · Advanced Drug Delivery Reviews · doi:10.1016/j.addr.2008.02.011 · Cited by 787
Araki, J., & Ito, K. (2007) · Soft Matter · doi:10.1039/b705688e · Cited by 311
Metadata
- Authors
- Fujita, H., Ooya, T., & Yui, N.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 1999-03-19
- Volume
- 32
- Issue
- 8
- Pages
- 2534-2541
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2028419131
- Cited by
- 195
- References
- 1
- FWCI
- 6.45
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Thermally Induced Localization of Cyclodextrins in a Polyrotaxane Consisting of β-Cyclodextrins and Poly(ethylene glycol)−Poly(propylene glycol) Triblock Copolymer. https://app.cochat.ai/papers/10.1021/ma9814550
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- Fujita, H., Ooya, T., & Yui, N. (1999). Thermally Induced Localization of Cyclodextrins in a Polyrotaxane Consisting of β-Cyclodextrins and Poly(ethylene glycol)−Poly(propylene glycol) Triblock Copolymer. Macromolecules. https://doi.org/10.1021/ma9814550
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