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A Rapid and Dual Optical CO2 -responsive Polydimethylsiloxane Elastomer with a Fluorinated Cyanine Dye
Ryunosuke Kani1,2, Yohei Miwa1, Yasuhiro Kubota1
1Department of Chemistry and Biomolecular Science, Gifu University, 1-1 Yanagido, Gifu, 501-1193, Japan.
Abstract:
We found that our optically CO2 -responsive polydimethylsiloxane (PDMS) elastomer rapidly and reversibly underwent both visible and fluorescent color changes in the presence of CO2 gas. Unlike conventional optically CO2 -responsive polymeric materials, it functions in totally dry gaseous conditions. The visible color and fluorescence of the elastomer sheet change after only 1 min of exposure to CO2 , and the sheet exhibits excellent repeatability in terms of color switching that persists for at least 20 times.
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