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P. Penczek, B. Szczepaniak, J. Rejdych


Synthesis of epoxide – oxazolidone oligomers


Polimery 1986, No 3–4, 104



DOI: dx.doi.org/10.14314/polimery.1986.104

Summary

The course of reaction of bisphenol A-glycidyl oligomers with cyanuric acid in the molten state at temperatures above 120°C has been investigated. It has been found that under these conditions contrary to expectation s-triazine derivatives are not formed, but linear oligomers with oxazolidone rings in the chain are. This structure has been eon- firmed by means of 1H-NMR- and 13C-NMR-spectra. The reaction mechanism has been. explained by assuming the transient formation of isocyanic acid in the reaction mixture.


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