Journal
ACS APPLIED POLYMER MATERIALS
Volume 4, Issue 8, Pages 6047-6053Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsapm.2c00862
Keywords
polydiacetylene; thermochromism; reversibility; near-infrared light; self-assemblies
Funding
- National Natural Science Foundation of China (NSFC) [51803021]
- Natural Science Foundation of Heilongjiang Province [LH2020E007]
- Fundamental Research Funds for the Central Universities [2572021BU05]
- China Postdoctoral Science Foundation [2018M641790]
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This article investigates the colorimetric behavior of fluorescein-substituted polydiacetylene (FPDA) in aqueous and solid films, revealing its reversible thermochromic and near-infrared light-responsive properties. The quantitative analysis of temperature in both solutions and solid films is also discussed. The authors' findings may contribute to the expansion of potential applications of PDA-based materials in sensors, display materials, photodetectors, and anticounterfeiting barcode systems.
The design of stimulus-responsive materials with a reversible colorimetric ability is of great value in the applications of sensors, anticounterfeiting, displays, and photodetection. In this article, the chromatic behavior of fluorescein-substituted polydiacetylene (FPDA) was researched in aqueous and solid films. The strong hydrogen bonding and aromatic interactions of the headgroup in FPDA led to an intriguing reversible thermochromism with a green-to-red color transition from 30 to 100 & DEG;C in solution and a blue-to-red color transition from 30 to 150 & DEG;C in the solid film. The relationships between colorimetric response values and the temperatures indicated the quantitative analysis of the temperature of PDA in both solution and solid films. Furthermore, FPDA displays a reversible color transition from blue to red in response to 980 nm near-infrared light with a higher power light density. Our work may pave the way for broadening the potential applications of PDA-based materials in the field of sensors, display materials, photodetectors, and anticounterfeiting barcode systems.
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