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Controlling CO 2 ‐Responsive Behaviors of Polymersomes Self‐Assembled by Coumarin‐Containing Star Polymer via Regulating Its Crosslinking Pattern
Author(s) -
Yang Qi,
Li Guo,
Xia Hesheng,
Liu Zhaotie,
Liu Zhongwen,
Jiang Jinqiang
Publication year - 2018
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201800009
Subject(s) - polymersome , ethylene glycol , amphiphile , aqueous solution , polymer chemistry , vesicle , polymer , amine gas treating , membrane , protonation , covalent bond , cyclodextrin , chemistry , coumarin , fluorescence , self assembly , star polymer , materials science , copolymer , organic chemistry , ion , biochemistry , physics , quantum mechanics
An oligo(ethylene glycol)‐based star polymer of N 2 ‐(OEG‐C) 3 with fluorescent coumarin as hydrophobic end groups and dual tertiary amines as the star center is designed and synthesized. Owing to its amphiphilic nature of N 2 ‐(OEG‐C) 3 , it will self‐assemble into hollow vesicles with coumarin groups dispersed in the hydrophobic membrane and exhibits CO 2 ‐responsive behavior due to the protonation of amine centers with CO 2 . More importantly, coumarin moieties can either form non‐crosslinking with γ‐cyclodextrin via the 2/1 host–guest inclusion, or covalently photodimerized by 365 nm light, offering a tunable crosslinking pattern in the hydrophobic membrane and thus adjusting its CO 2 ‐stimulated reorganization and disassembly behaviors of these vesicles in aqueous solution.
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