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DSC and 13C-NMR studies of the imidazole-accelerated reaction between epoxides and phenols

✍ Scribed by Arturo Hale; Christopher W. Macosko; Harvey E. Bair

Book ID
102735997
Publisher
John Wiley and Sons
Year
1989
Tongue
English
Weight
730 KB
Volume
38
Category
Article
ISSN
0021-8995

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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