Structural Analysis of Polyhydroxyurethane Obtained by Polyaddition of Bifunctional Five-Membered Cyclic Carbonate and Diamine Based on the Model Reaction

摘要

This article focuses on the structural analysis of polyhydroxyurethane obtained by the reaction of 2,2-bisfp.(1,3-dioxolan-2-one-4-yl-methoxy)phenyIJpropane with a diamine based on the model reaction. The compounds obtained in the model reaction could be separated into hydroxyurethanes containing primary and secondary alcohol groups by preparative gel permeation chromatography with a recycling tech- nique to determine the structures by IH NMR, 13C NMR, distortionless enhancement by polarization transfer (DEPr) and C-H correlation spectroscopy to obtain hy- droxyurethane carrying the primary alcohol structure moiety dominantly. The ratios were independent of the reaction temperature but somewhat dependent on the solvents and amines.