Synthesis and properties of thermo-resistant polymers with hydantoin rings used in the electro insulating lacquers
The results of studies on the synthesis of polyhydantoin resins with the aromatic-heterocyclic structure have been presented. These resins are used to improve the thermal resistance of the electroinsulating polyester and polyester- imide lacquers. A detailed interpretation of the IR-, 1H-NMR and 13C-NMR spectra of these polymers have been given and the results of studies on the effect of chemical structure of polyhydantoin resins on their thermal stability and solubility presented.
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