Oligoetherols based on melamine–formaldehyde–butanone resins

Abstract

New oligoetherols with 1,3,5-triazine ring were obtained from melamineformaldehyde-butanone resins using 12 molar excess propylene oxide (with respect to the amount of introduced melamine). The resins were obtained from melamine solutions in reactive solvent obtained from simple chemical compound-methyl ethyl ketone (butan-2-one) in its reaction with 3 molar excess formaldehyde. Physical and chemical properties of obtained oligoetherols were determined and their structure was confirmed on the basis of proton magnetic resonance, infrared spectral data and MALDI-ToF mass analysis. The amount of by-products was specified on the basis of chromatographic analysis. Initial tests proved that obtained oligoetherols can constitute a potential substrate for obtaining polyurethane foams of increased thermal resistance.

Effect of Thermochromic and Photochromic Microcapsules on the Surface Coating Properties for Metal Substrates

“…The flexural vibration absorption peak in the C-H plane of the benzene ring appears at 697 cm −1 , which is the characteristic peak of styrene-maleic anhydride copolymer [46]. The typical peaks of the triazine ring of polyformaldehyde melamine's stretching vibration appeared at 816 cm −1 and 1343 cm −1 [47].…”

Oligoetherols with S-Trazine Ring Based on Hydroxymethyl Derivatives of Methyl Ethyl Ketone

“…The reactive melamine solvents can find application in production of water-resistant polymer coatings, filled materials and foamed polyurethane materials [5]. The most recent applications of melamine solutions are in the field of oligoetherols [6].…”