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    Author(s): Yasunori Yoshida; Bunchiro Tomita; Chung-Yun Hse
    Date: 1995
    Source: Mokuzai Gakkaishi 41(6):547-554
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (1.2 MB)

    Description

    The kinetics of the reactions of methylolphenols and urea were investigated using 2- and 4-hydroxybenzyl alcohols. The high-performance liquid chromatography (HPLC) using a reverse-phase column gave a clear separation between methylolphenols and hydroxybenzylureas. The molar ratios of hydroxybenzylureas to the corresponding methylolphenols in reaction mixtures were obtained from the ratios of peak areas of the chromatograms by using transfer factors corrected by quantitative 13C-NMR (carbon 13 nuclear magnetic resonance) measurements. The reactions of 2- and 4-hydroxybenzyl alcohols with excessive amounts of urea were found to follow the pseudo-first-order reaction.

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    Citation

    Yoshida, Yasunori; Tomita, Bunchiro; Hse, Chung-Yun 1995. Kinetics on cocondensation between phenol and urea through formaldehyde I. Mokuzai Gakkaishi 41(6):547-554

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