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- Title
A Rapidly Self-Healing Supramolecular Polymer Hydrogel with Photostimulated Room-Temperature Phosphorescence Responsiveness.
- Authors
Chen, Hui; Ma, Xiang; Wu, Shuaifan; Tian, He
- Abstract
Development of self-healing and photostimulated luminescent supramolecular polymeric materials is important for artificial soft materials. A supramolecular polymeric hydrogel is reported based on the host-guest recognition between a β-cyclodextrin (β-CD) host polymer (poly-β-CD) and an α-bromonaphthalene (α-BrNp) polymer (poly-BrNp) without any additional gelator, which can self-heal within only about one minute under ambient atmosphere without any additive. This supramolecular polymer system can be excited to engender room-temperature phosphorescence (RTP) signals based on the fact that the inclusion of β-CD macrocycle with α-BrNp moiety is able to induce RTP emission (CD-RTP). The RTP signal can be adjusted reversibly by competitive complexation of β-CD with azobenzene moiety under specific irradiation by introducing another azobenzene guest polymer (poly-Azo).
- Subjects
SUPRAMOLECULAR chemistry; SELF-healing materials; SUPRAMOLECULAR polymers; COLLOID synthesis; PHOSPHORESCENCE; CYCLODEXTRINS
- Publication
Angewandte Chemie, 2014, Vol 126, Issue 51, p14373
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201407402