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Characterization of the Low Molar Ratio Urea–Formaldehyde Resin with (13)C NMR and ESI–MS: Negative Effects of the Post-Added Urea on the Urea–Formaldehyde Polymers

The structural changes during three-step synthesis of low-molar ratio urea–formaldehyde (UF) resin were tracked by quantitative (13)C nuclear magnetic resonance ((13)C NMR) analysis and electrospray ionization-mass spectrometry (ESI–MS). Condensations that produced polymers were found to be linked b...

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Detalles Bibliográficos
Autores principales:	Wang, Hui, Cao, Ming, Li, Taohong, Yang, Long, Duan, Zhigang, Zhou, Xiaojian, Du, Guanben
Formato:	Online Artículo Texto
Lenguaje:	English
Publicado:	MDPI 2018
Materias:	Article
Acceso en línea:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6403571/ https://www.ncbi.nlm.nih.gov/pubmed/30966636 http://dx.doi.org/10.3390/polym10060602

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