We are grateful for the financial support from the NSF of China (20 374 015, 50 533 010, and 20 574 013), the Key Grant of the Chinese Ministry of Education (305 004), 973 Project and 863 Project (2005CB522700) from the Chinese Ministry of Science and Technology, and the Science and Technology Developing Foundation of Shanghai (04JC14019 and 055 207 082).
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Communication
A Subtle End-Group Effect on Macroscopic Physical Gelation of Triblock Copolymer Aqueous Solutions†
Article first published online: 3 MAR 2006
DOI: 10.1002/anie.200503575
Copyright © 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Yu, L., Zhang, H. and Ding, J. (2006), A Subtle End-Group Effect on Macroscopic Physical Gelation of Triblock Copolymer Aqueous Solutions. Angew. Chem. Int. Ed., 45: 2232–2235. doi: 10.1002/anie.200503575
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Publication History
- Issue published online: 17 MAR 2006
- Article first published online: 3 MAR 2006
- Manuscript Revised: 18 DEC 2005
- Manuscript Received: 8 OCT 2005
Keywords:
- block copolymers;
- gels;
- phase transitions;
- self-assembly;
- sol–gel processes
In the end: Alkyl end groups can induce a thermoreversible sol–gel transition in an otherwise sol-like suspension by affecting the macroscopic self-assembly behavior. The picture shows PLGA-PEG-PLGA triblock copolymer/water mixtures in the sol (polymer a), gel (polymers b and c), and precipitation states (polymer d). PLGA=poly(lactic acid-co-glycolic acid), PEG=poly(ethylene glycol).