Synthesis and characterization of hydrophilic polyester‐PEO networks with shape‐memory properties |
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| Authors: | Yakai Feng Shifeng Zhang Li Zhang Jintang Guo Yongshen Xu |
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| Institution: | 1. School of Chemical Engineering and Technology, Tianjin University, Weijin Road 92, Tianjin 300072, P. R. China;2. Tianjin University‐GKSS Research Centre, Joint Laboratory for Biomaterials and Regenerative Medicine, Weijin Road 92, 300072 Tianjin, P. R. China;3. Key Laboratory of Systems Bioengineering of Ministry of Education, Tianjin University, Weijin Road 92, Tianjin 300072, P. R. China;4. College of Wood Sciences and Technology, Key Laboratory of The Ministry of Education of Wood Science and Engineering, Beijing Forestry University, Beijing 100083, P. R. China |
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| Abstract: | Shape‐memory polyester‐polyethylene oxide networks are synthesized through photopolymerization of hydrophobic poly(D,L‐lactide)‐co‐glycolide]tetraacrylate (PLGATA) and hydrophilic poly(ethylene glycol) dimethacrylate (PEGDMA). The materials can recover their original shape either quickly by heating stimulus or slowly upon immersion in water. The wettability, mechanical properties, and transition temperature of the polymer networks could be conveniently adjusted by variation of the compositions of PLGATA and PEGDMA. The hydrophilicity of PEGDMA could prospectively improve blood compatibility of polymer networks. They offer a high potential for biomedical applications such as smart implants, drug delivery systems, or medical devices. Copyright © 2010 John Wiley & Sons, Ltd. |
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| Keywords: | polymer networks photopolymerization polyester poly(ethylene glycol) dimethacrylate shape‐memory |
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