Structural analysis of polyhydroxyurethane obtained by polyaddition of bifunctional five-membered cyclic carbonate and diamine based on the model reaction
✍ Scribed by Hidetoshi Tomita; Fumio Sanda; Takeshi Endo
- Publisher
- John Wiley and Sons
- Year
- 2001
- Tongue
- English
- Weight
- 222 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0887-624X
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✦ Synopsis
This article focuses on the structural analysis of polyhydroxyurethane obtained by the reaction of 2,2-bis[p-(1,3-dioxolan-2-one-4-yl-methoxy)phenyl]propane 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 technique to determine the structures by 1 H NMR, 13 C NMR, distortionless enhancement by polarization transfer (DEPT) and COH correlation spectroscopy to obtain hydroxyurethane carrying the primary alcohol structure moiety dominantly. The ratios were independent of the reaction temperature but somewhat dependent on the solvents and amines.