A Rapidly Self-Healing Supramolecular Polymer Hydrogel with Photostimulated Room-Temperature Phosphorescence Responsiveness

作者：Chen, Hui; Ma, Xiang^*; Wu, Shuaifan; Tian, He

来源：Angewandte Chemie - International Edition, 2014, 53(51): 14149-14152.

DOI：10.1002/anie.201407402

• hydrogels
• photostimulation
• room-temperature phosphorescence
• self-healing
• supramolecular polymers

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 beta-cyclodextrin (beta-CD) host polymer (poly-beta-CD) and an alpha-bromonaphthalene (alpha-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 beta-CD macrocycle with alpha-BrNp moiety is able to induce RTP emission (CD-RTP). The RTP signal can be adjusted reversibly by competitive complexation of beta-CD with azobenzene moiety under specific irradiation by introducing another azobenzene guest polymer (polyAzo).

• 出版日期2014-12-15
• 单位华东理工大学