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- W2356544293 abstract "The etherification reaction of bisphenol-S(BPS) and epichlorohydrin(ECH) has been studied by a quantitative FT-IR method.The relationship between the changes in the absorption intensities of the FT-IR stretc-hing bands corresponding to phenolic hydroxyl groups and the ether group was studied by regression analysis.The results showed that they have an excellent quadratic function correlation.Based on this result,a standard working curve was set up which could be used to measure the conversion rate of the phenolic hydroxyl group in the etherification reaction of BPS and ECH.This curve was also used in studying the kinetics of the etherification reaction of BPS and ECH.The results showed that the reaction rate is determined by the concentration of the phenolic hydroxyl groups when the ECH is present in large excess.However there is a critical concentration of phenolic hydroxyl groups.When the concentration of the phenolic hydroxyl groups is less than the critical concentration,the reaction follows first order kinetics,with the reaction rate being proportional to the concentration of phenolic hydroxyl groups.However when the concentration of the phenolic hydroxyl groups is greater than the critical concentration,the reaction is zero order,and the reaction has a maximum reaction rate,which is not related to the concentration of phenolic hydroxyl groups." @default.
- W2356544293 created "2016-06-24" @default.
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- W2356544293 date "2012-01-01" @default.
- W2356544293 modified "2023-09-25" @default.
- W2356544293 title "A quantitative FT-IR study of the kinetics of the etherification reaction of bisphenol-S and epichlorohydrin" @default.
- W2356544293 hasPublicationYear "2012" @default.
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