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. Kinetics on cocondensation between phenol and urea through formaldehyde III

    Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Yasunori Yoshida; Bunichiro Tomita; Chung-Yun Hse
    Date: 1995
    Source: Mokuzai Gakkaiski, Vol. 41(7): 652-658
    Publication Series: Scientific Journal (JRNL)
    PDF: Download Publication  (895 KB)

    Description

    Concurrent reactions involving cocondensation and self-codensation were determined simultaneously in the reactions of o- and p-methylophenol, respectively, with urea. The results were as follow:
    (1) The reactivity ratio of self-condensation to cocondensation could be determined by equation [4] for the concurrent reaction of monomethylolphenol with urea.
    (2)For the reaction of o-methylolphenol with urea in water, it was found that the second-order rate constant of the self-condensation due to the formation of a o,p-methylene linkage is approximately ten times greater than that of the cocondensation between o-methylolphenols with urea, The reaction solvent of the mixture of water and dioxane reduced the ractivity ratio.
    (3) For the reaction of p-methylolphenol with urea using a water/dioxane solvent, it was suggested that the rate constant of the cocondensation is approximately four times greater than that of the self-condensation between p-methylolphenols.

    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

    Yoshida, Yasunori; Tomita, Bunichiro; Hse, Chung-Yun. 1995. Kinetics on cocondensation between phenol and urea through formaldehyde III. Mokuzai Gakkaiski, Vol. 41(7): 652-658

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/24340