The synthesis and characterization of monomeric etherified methylolated melamines using gel permeation chromatography and proton magnetic resonance spectroscopy

摘要

AbstractA series of monomeric etherified methylolated melamines were prepared and characterized by proton magnetic resonance spectroscopy and gel permeation chromatography. Gel permeation chromatographic analysis permits a rapid and accurate determination of the monomer and polymer content of the products. Proton magnetic resonance spectroscopy permits the qualitative identification of the etherifying alcohols and a quantitative estimation of the alkoxy groups present. The molar ratios of alcohols necessary to produce products having specific alkoxy contents are presented graphically.