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Based on work presented by Dow Toray Co., LTD
Real-time Raman measurement of reactants, products, and by-products.
Applications of silicone stem from its diverse properties, and altering these properties through well-controlled chemistry enables the creation of fit-for-purpose products. In this application, a silicone compound was synthesized by reacting a siloxane and an olefin. The researchers wished to understand the kinetics of this hydrosilylation and determine if in-situ Raman spectroscopy could provide the quantitative conversion rate. In-situ analysis mitigates the need for off-line measurement with its inherent difficulties including irreproducible sampling, sample preparation, and analysis time delays.
To track this reaction, a ReactRaman system equipped with a fiber optic probe monitored the Si-H bond of the hydride functionalized siloxane, the C=C bond of the olefin reagent, as well as bonds associated with the final product. Calibration plots were developed in order to track the reaction % conversion rate.
Download the application note to see the results and conclusions of Dow's application.
