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Quantitative carbon-13 NMR study of urea-formaldehyde resins in relation to the formaldehyde emission levels

✍ Scribed by Kim, Moon G.; Amos, Larry W.


Book ID
120049245
Publisher
American Chemical Society
Year
1990
Tongue
English
Weight
597 KB
Volume
29
Category
Article
ISSN
0888-5885

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## Abstract Phenol‐urea‐formaldehyde (PUF) resins were synthesized by reacting mixture of methylolureas (MMU), phenol, and formaldehyde. The structure of PUF cocondensed resins at different stages of reaction were analyzed by liquid ^13^C nuclear magnetic resonance (NMR) spectroscopy. The liquid ^1