A Fluorescent Supramolecular Crosslinked Polymer Gel Formed by Crown Ether Based Host-Guest Interactions and Aggregation Induced Emission

Based on the combination of B21C7/dialkylammonium salt host-guest interactions and tetraphenylethylene （TPE）-based aggregation-induced emission （AIE） effect, a fluorescent supramolecular crosslinked polymer gel was successfully prepared. Compared with the solution of TPE-containing small molecules,...

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Bibliographic Details
Published in:Chinese journal of polymer science 2015-06, Vol.33 (6), p.890-898
Main Authors: Ji, Xiao-fan, Wang, Pi, Wang, Hu, Huang, Fei-he
Format: Article
Language:English
Subjects:
Agglomeration
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Condensed Matter Physics
Construction materials
Crosslinking
Crown ethers
Emission
Fluorescence
Industrial Chemistry/Chemical Engineering
Phenyls
Polymer Sciences
Stimuli
主客体相互作用
交联
发光
聚合物凝胶
聚集
荧光增强
诱导
超分子化学
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Summary:Based on the combination of B21C7/dialkylammonium salt host-guest interactions and tetraphenylethylene （TPE）-based aggregation-induced emission （AIE） effect, a fluorescent supramolecular crosslinked polymer gel was successfully prepared. Compared with the solution of TPE-containing small molecules, this gel exhibited remarkable fluorescence enhancement due to the AIE effect of TPE units. The ＂gelation induced fluorescence emission＂ phenomenon can be explained by the hindered intramolecular rotation of phenyl rings of TPE. Because of the reversibility and stimuli-responsiveness of the B21C7/dialkylammonium salt host-guest interactions, the transition between the fluorescent supramolecular crosslinked polymer gel and the disassembled sol with very weak fluorescence can be realized by adding pH and thermal stimuli. This novel material contributes to the development of supramolecular chemistry, polymer science and fluorescent materials and offers a new method to construct functional supramolecular materials.
ISSN:0256-7679
1439-6203
DOI:10.1007/s10118-015-1639-6