Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Bunichiro Tomita; Chung-Yun Hse
    Date: 1995
    Source: Japan Wood Research Society 41(3):349-354
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (980 KB)

    Description

    The 13C-NMR (carbon 13 nuclear magnetic resonance) spectra of urea-formaldehyde (UF) resins, melamine-formaldehyde (MF) resins, and melamine-urea-formaldehyde (MUF) cocondensed resins synthesized under various conditions were taken with a frequency of 75 MHz. The main purpose was to investigate whether or not the occurrences of cocondensation between melamine and urea through the formations of methylene or dimethylene ether linkages could be identified. The signals due to carbons of methylene linkages of UF resins were distigishable from those of MF resins. The signaled use to carbons of cocondensed methylene linkages (-NH-CH2-NH-), in which both nitrogen atoms are secondary, were suggested to be identifiable separately from those due to UF and MF resins.

    Publication Notes

    • You may send email to pubrequest@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Tomita, Bunichiro; Hse, Chung-Yun. 1995. Analysis of cocondensation of melamine and urea through formaldehyde with carbon 13 nuclear magnetic resonance spectroscopy. Japan Wood Research Society 41(3):349-354

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/8315