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Preparation of Azobenzene-Containing Amphiphilic Diblock Copolymers for Light-Responsive Micellar Aggregates
Abstract
Diblock copolymers composed of a side-chain liquid crystalline azobenzene-containing polymethacrylate and poly( tert -butyl acrylate) (PAzoMA- b -P t BA) were prepared using atom-transfer radical polymerization (ATRP). After subsequent selective hydrolysis of P t BA yielding poly(acrylic acid) (PAA), amphiphilic diblock copolymers of PAzoMA- b -PAA were obtained. Aggregation of either PAzoMA or PAA block occurs in solvents selective for one of the blocks. Adding water into dioxane solution of PAzoMA- b -PAA forms micellar aggregates due to the hydrophobic PAzoMA block. Under alternating UV and visible light illumination, reversible changes in micellar aggregates, for both core−shell micelles and vesicles, took place as a result of the reversible trans−cis photoisomerization of azobenzene mesogens in PAzoMA.
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Citations
Cited by
Ouchi, M., Terashima, T., & Sawamoto, M. (2009) · Chemical Reviews · doi:10.1021/cr900234b · Cited by 1,257
Photo-mechanical effects in azobenzene-containing soft materials
Barrett, C. J., Mamiya, J.-I., Yager, K. G., & Ikeda, T. (2007) · Soft Matter · doi:10.1039/b705619b · Cited by 560
Light‐sensitive Intelligent Drug Delivery Systems†
Alvarez‐Lorenzo, C., Bromberg, L., & Concheiro, A. (2009) · Photochemistry and Photobiology · doi:10.1111/j.1751-1097.2008.00530.x · Cited by 519
Mechanisms of drug release in nanotherapeutic delivery systems
Wong, P. T., & Choi, S. K. (2015) · Chemical Reviews · doi:10.1021/cr5004634 · Cited by 507
Azobenzene photomechanics: prospects and potential applications
Mahimwalla, Z., Yager, K. G., Mamiya, J.-I., Shishido, A., Priimagi, A., & Barrett, C. J. (2012) · Polymer Bulletin · doi:10.1007/s00289-012-0792-0 · Cited by 419
Metadata
- Authors
- Wang, G., Tong, X., & Zhao, Y.
- Venue
- Macromolecules
- Publisher
- American Chemical Society (ACS)
- Published
- 2004-10-28
- Volume
- 37
- Issue
- 24
- Pages
- 8911-8917
- ISSN
- 0024-9297 (ISSN-L)
- 1520-5835
- OpenAlex
- W2030495188
- Cited by
- 452
- References
- 0
- FWCI
- 10.59
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, G., Tong, X., & Zhao, Y. (2004). Preparation of Azobenzene-Containing Amphiphilic Diblock Copolymers for Light-Responsive Micellar Aggregates. Macromolecules. https://doi.org/10.1021/ma048416a
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