Journal of Polymer Research

, Volume 17, Issue 4, pp 503–510 | Cite as

Thermo-sensitive hydrogels formed from the photocrosslinkable polypseudorotaxanes consisting of β-cyclodextrin and Pluronic F68/PCL macromer

  • San-Ping Zhao
  • Wei-Lin Xu
Original Paper


To create thermo-sensitive supramolecular hydrogels with high mechanical strength, viscous gel precursors were first formed via block-selected inclusion complexation between β-cyclodextrin (β-CD) and Pluronic F68/poly(ε-caprolactone) block copolymer terminated with acryloyl groups in aqueous media, and subsequently in situ photocrosslinking was employed in the presence of a photoinitiator. The supramolecular assembly in photocrosslinked hydrogels was revealed by wide-angle X-ray diffraction (WXRD) and thermogravimetric analysis (TGA). The rheological studies demonstrated that in situ photocrosslinking could greatly improve the mechanical strength of the gellike precursors. The swelling measurements showed that as-obtained hydrogel displayed a thermo-responsive property. The temperature dependence of the hydrogels decreased with the increase of the β-CD amounts introduced. The resultant hydrogels have the potential to use as carriers for drug delivery and tissue engineering scaffolds.


Supramolecular hydrogel Inclusion complexation Photocrosslinking Mechanical strength Thermo-responsiveness 



This work was supported by Grants from the Major State Basic Research Development Program of China (973 Program) (No. 2009CB526402), the Nature Science Foundation of Hubei Province (No. 2007ABB033) and WUSE Research Fund (No. 2008Z01).


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Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  1. 1.Key Laboratory of Green Processing and Functional Textiles of New Textile Materials of Ministry of EducationWuhan University of Science and EngineeringWuhanPeople’s Republic of China

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