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Synthesis, Characterization, and Stereocomplex-Induced Gelation of Block Copolymers Prepared by Ring-Opening Polymerization of l(d)-Lactide in the Presence of Poly(ethylene glycol)
Abstract
A series of block copolymers were synthesized by ring-opening polymerization of l ( d )-lactide in the presence of mono- or dihydroxyl poly(ethylene glycol) (PEG) using zinc metal as a catalyst. The resulting diblock and triblock copolymers with relatively short polylactide (PLA) blocks were characterized by various analytical techniques such as 1 H NMR, SEC, DSC, and X-ray diffraction. The data showed that the copolymers were semicrystalline materials with predominant PEG crystallization although PLA blocks crystallized slightly in some cases. Solubilization tests showed that both the composition and molar mass are determining factors in the water solubility of the copolymers. Bioresorbable hydrogels were prepared from aqueous solutions containing both poly( l -lactide)/PEG and poly( d -lactide)/PEG block copolymers. Hydrogel formation resulted from stereocomplexation occurring between poly( l -lactide) and poly( d -lactide) blocks.
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Cites
Hydrogels for biomedical applications
Hoffman, A. S. (2002) · Advanced Drug Delivery Reviews · doi:10.1016/s0169-409x(01)00239-3 · Cited by 4,864
Cited by
Controlled Ring-Opening Polymerization of Lactide and Glycolide
Dechy-Cabaret, O., Martin-Vaca, B., & Bourissou, D. (2004) · Chemical Reviews · doi:10.1021/cr040002s · Cited by 2,257
Poly(lactide) Stereocomplexes: Formation, Structure, Properties, Degradation, and Applications
Tsuji, H. (2005) · Macromolecular Bioscience · doi:10.1002/mabi.200500062 · Cited by 1,366
Hydrogels in a historical perspective: From simple networks to smart materials
Buwalda, S. J., Boere, K. W. M., Dijkstra, P. J., Feijen, J., Vermonden, T., & Hennink, W. E. (2014) · Journal of Controlled Release · doi:10.1016/j.jconrel.2014.03.052 · Cited by 994
In situ gelling stimuli-sensitive block copolymer hydrogels for drug delivery
He, C., Kim, S. W., & Lee, D. S. (2008) · Journal of Controlled Release · doi:10.1016/j.jconrel.2008.01.005 · Cited by 867
PEG — A versatile conjugating ligand for drugs and drug delivery systems
Kolate, A., Baradia, D., Patil, S., Vhora, I., Kore, G., & Misra, A. (2014) · Journal of Controlled Release · doi:10.1016/j.jconrel.2014.06.046 · Cited by 648
Metadata
- Authors
- Li, S., & Vert, M.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2003-09-27
- Volume
- 36
- Issue
- 21
- Pages
- 8008-8014
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2092377933
- Cited by
- 183
- References
- 1
- FWCI
- 4.44
- Type
- journal article
- Language
- en
- Open access
- closed
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- Li, S., & Vert, M. (2003). Synthesis, Characterization, and Stereocomplex-Induced Gelation of Block Copolymers Prepared by Ring-Opening Polymerization of l(d)-Lactide in the Presence of Poly(ethylene glycol). Macromolecules. https://doi.org/10.1021/ma034734i
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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