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    Synthesis and structural characterization of urea–isobutyraldehyde–formaldehyde resins

    Urea–isobutyraldehyde–formaldehyde (UIF) resins were synthesized using urea, isobutyraldehyde, and formaldehyde; sulfuric acid was used as a catalyst. The effects of molar ratio of urea/isobutyraldehyde/formal...

    Yi-fu Zhang, **ng-rong Zeng, Bi-ye Ren in Journal of Coatings Technology and Research (2009)