Journal of Thermal Analysis and Calorimetry

, Volume 56, Issue 3, pp 1347–1352

Thermal Behaviour of Phenol-Formaldehyde (PF) Compounds

Authors

  • L. Y. Tonge
    • School of Engineering and ScienceSwinburne University of Technology
  • Y. Yazaki
    • CSIRO Forestry and Forest Products
  • A. S. Blicblau
    • School of Engineering and ScienceSwinburne University of Technology
Article

DOI: 10.1023/A:1010158507360

Cite this article as:
Tonge, L.Y., Yazaki, Y. & Blicblau, A.S. Journal of Thermal Analysis and Calorimetry (1999) 56: 1347. doi:10.1023/A:1010158507360
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Abstract

The self-condensation reactions of 2- and 4-mono-methylol phenols (2-MMP and 4-MMP), in the presence of varying concentrations of NaOH, have been studied by differential scanning calorimetry (DSC). The reaction exotherms were analysed to derive the activation energy, Ea, and the heat of reaction, HT, for the condensation reactions. In the case of 2-MMP an increase in NaOH:2-MMP molar ratio caused an increased in Ea and a decrease in HT up to a molar ratio of 0.6:1. However, for 4-MMP, an increase in NaOH concentration caused an increase in Ea up to a molar ratio of 0.3:1 beyond which there appeared to be no further effect. The presence of NaOH had no effect on HT for this compound. The results suggest that in the range of NaOH concentration used the effect of NaOH was substantially greater on 2-MMP compared to 4-MMP.

activation energydifferential scanning calorimetryheat of reaction2-mono-methylol phenol4-mono-methylol phenol

Copyright information

© Kluwer Academic Publishers 1999