NDLI: Tunable assembly and disassembly of responsive supramolecular polymer brushes

Content Provider	Royal Society of Chemistry (RSC)
Author	Gao, Zhiliang Hao, Jingcheng Hu, Yuanyuan Dong, Shuli Cui, Jiwei Chen, Mengjun
Copyright Year	2017
Abstract	We report the synthesis and assembly of light-responsive supramolecular polymer brushes based on the host–guest interaction between β-cyclodextrin (β-CD) on star-like side chains and azobenzene groups on a polymer backbone. The fraction of the hydrophilic–hydrophobic units can be easily controlled via changing the ratio of host and guest molecules. The supramolecular polymer brushes can self-assemble into unimolecular micelles, multi-molecular micelles, and vesicles with tunable sizes from 28 to 300 nm in water, respectively, with the decrease of β-CD side chains. The assemblies of micelles or vesicles can be disassembled by the trigger of UV light irradiation due to the responsive azobenzene groups. In addition, the phase transition temperature of the supramolecular polymer brushes increases with the decrease of the side chains. The micelles or vesicles can further assemble into strawberry superstructures by increasing the temperature. Our work provides a platform for the generation of assemblies across a wide range of scales, from polymer brushes to micelles or vesicles and superstructures.
Starting Page	2764
Ending Page	2772
Page Count	9
File Format	HTM / HTML PDF
ISSN	17599954
Volume Number	8
Issue Number	18
Journal	Polymer Chemistry
DOI	10.1039/c7py00149e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Polymer Azobenzene Phase transition
Content Type	Text
Resource Type	Article
Subject	Organic Chemistry Biochemistry Bioengineering Biomedical Engineering Polymers and Plastics

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