Citation: Xiao-fan Ji, Pi Wang, Hu Wang, Fei-he Huang. A Fluorescent Supramolecular Crosslinked Polymer Gel Formed by Crown Ether Based Host-Guest Interactions and Aggregation Induced Emission[J]. Chinese Journal of Polymer Science, ;2015, 33(6): 890-898. doi: 10.1007/s10118-015-1639-6 shu

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

1.
State Key Laboratory of Chemical Engineering, Department of Chemistry, Zhejiang University, Hangzhou 310027, China

Received Date: 15 October 2014
Revised Date: 27 October 2014

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.
- Fluorescent polymer gel,
- Aggregation-induced emission,
- Host-guest interactions,
- Responsiveness
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1.
沈阳化工大学材料科学与工程学院沈阳 110142