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Cure Monitoring of Hydrosilation-Curable Silicones by Fluorescence Spectroscopy



Y Hotta, K Komatsu, Francis W. Wang


Cure monitoring of hydrosilation is needed to control the fabrication of medical devices from hydrosilation-curable silicones. The fluorescence spectrum of a probe with one or more unsaturated bonds in its chromophore changes when the probe reacts with a hydrosilating agent. If the probe's hydrosilation rate is comparable to that for a hydrosilation-curable silicone, the cure of the silicone can be monitored by measuring the change in the fluorescence spectrum of the probe. The purpose of this study was to evaluate a fluorescent probe for cure monitoring of hydrosilation-curable silicones. A fluorescent probe [9,10-bis-(phenylethynyl)anthracene, BPEA] was dissolved in a hydrosilation-curable silicone, and the change in the fluorescence spectrum of the probe was measured during the cure of the silicone. The change in the elastic modulus of the silicone was also measured and compared with the change in the fluorescence spectrum.
Society for Biomaterials


9, 10-bis-(phenylethynyl)anthracene, cure monitoring, fluorescence spectroscopy, hydrosilation, mechanical properties, polymerization, silicone


Hotta, Y. , Komatsu, K. and Wang, F. (2021), Cure Monitoring of Hydrosilation-Curable Silicones by Fluorescence Spectroscopy, Society for Biomaterials (Accessed July 15, 2024)


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Created October 12, 2021