Kinetics of polymerization of dimer fatty acids with ethylenediamine after 90% conversion

Javad Heidarian, Nayef Ghasem, Wan Ashri Wan Daud

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Today, hot melt adhesives are used in a variety of manufacturing processes, including bookbinding, product assembly and box and carton heat sealing. Understanding the kinetics of the process is of great importance. In this work, the kinetics for the polymerization of dimer fatty acids and ethylenediamine after 90% conversion were investigated. The rate equation used was based on a third order expression after 90% conversion. The reaction temperature was in the range. 435-475 K. The parameters of the rate equations were determined using non-linear regression analysis. Comparison of the model predictions with the experimental data showed that the approach was useful for predicting: the polymerization kinetics. The frequency factor and the activation energy for the forward rate constant after 90% conversion were 93 339.62 kg-mol-1 min-1 and 53.40 kJ mol-1 respectively. The reverse rate constant was almost zero.

Original languageEnglish
Pages (from-to)658-663
Number of pages6
JournalMacromolecular Chemistry and Physics
Issue number6
Publication statusPublished - Mar 18 2005
Externally publishedYes


  • Dimer fatty acid
  • Ethylenediamine
  • Fatty polyamide
  • Kinetics
  • Polymerization

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry


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