Quantitative and qualitative 1H, 13C, and 15N NMR spectroscopic investigation of the urea–formaldehyde resin synthesis

O Steinhof, ÉJ Kibrik, G Scherr…

Index: Steinhof, Oliver; Kibrik, Eleonore J.; Scherr, Guenter; Hasse, Hans Magnetic Resonance in Chemistry, 2014 , vol. 52, # 4 p. 138 - 162

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Citation Number: 11

Abstract

Urea–formaldehyde resins are bulk products of the chemical industry. Their synthesis involves a complex reaction network. The present work contributes to its elucidation by presenting results from detailed NMR spectroscopic studies with different methods. Besides 1H NMR and 13C NMR, 15N NMR spectroscopy is also applied. 15N-enriched urea was used for the investigations. A detailed NMR signal assignment and a model of the reaction ...