Multicolor Luminescence of a Polyurethane Derivative Driven by Heat/Light-Induced Aggregation

Jiang, Nan; Li, Ke-Xin; Xie, Wei; Zhang, Shu-Ran; Li, Xin; Hu, Yue; Xu, Yan-Hong; Liu, Xing-Man; Bryce, Martin R.

Abstract

The study of aggregate formation and its controllable effect on luminescence behavior has a far-reaching influence in establishing a universal aggregation photophysical mechanism. In this paper, we obtained clusters with different extents of aggregation by heat-induced or light-triggered aggregation of a new polyurethane derivative (PUE). The controllable regulation of multicolor fluorescence of a single (nondoped) polymeric material is realized. The luminescence behavior of PUE varies with microscopic control of the aggregation structure. Compared with the powder state, the enhanced atom–atom and group–group interactions of PUE-gel effectively limit the nonradiative transitions in the excited state and result in a red-shift in emission. This work avoids complex organic synthesis and demonstrates a simple strategy to induce aggregation and regulate the emitting color of macromolecules, providing a template for developing new materials for multicolor fluorescence. In addition, a pattern was constructed with encryption, anticounterfeiting, and information transmission functions which provide a proof-of-concept demonstration of the practical potential of PUE as a smart material.

Citation

Jiang, N., Li, K., Xie, W., Zhang, S., Li, X., Hu, Y., …Bryce, M. R. (2023). Multicolor Luminescence of a Polyurethane Derivative Driven by Heat/Light-Induced Aggregation. Macromolecules, 56(19), 7721-7728. https://doi.org/10.1021/acs.macromol.3c01345

• Journal Article Type: Article
• Acceptance Date: Sep 14, 2023
• Online Publication Date: Sep 29, 2023
• Publication Date: Oct 10, 2023
• Deposit Date: Oct 3, 2023
• Publicly Available Date: Oct 3, 2023
• Journal: Macromolecules
• Print ISSN: 0024-9297
• Electronic ISSN: 1520-5835
• Publisher: American Chemical Society
• Peer Reviewed: Peer Reviewed
• Volume: 56
• Issue: 19
• Pages: 7721-7728
• DOI: https://doi.org/10.1021/acs.macromol.3c01345
• Keywords: Materials Chemistry; Inorganic Chemistry; Polymers and Plastics; Organic Chemistry
• Public URL: https://durham-repository.worktribe.com/output/1756401