Journal of Thermal Analysis and Calorimetry

, Volume 133, Issue 3, pp 1455–1462 | Cite as

New thermal study of polymerization and degradation kinetics of methylene diphenyl diisocyanate

  • José Eduardo Estevam da Silva
  • Rafael Turra Alarcon
  • Caroline Gaglieri
  • Aroldo Geraldo Magdalena
  • Luiz Carlos da Silva-Filho
  • Gilbert Bannach


This work investigates the thermal polymerization process of a methylene diphenyl diisocyanate (MDI) monomer as well as its thermal degradation following the ICTAC recommendations. MDI monomer is widely used as a synthetic resin in the production of MDF panels, as it provides compaction of the eucalyptus fibers by polymerization. Thermogravimetry/derivative thermogravimetric-differential thermal analysis (TG/DTG-DTA), differential scanning calorimetry, and mid-infrared spectroscopy were used in this study. The polymerization process (An) and degradation (Fn) process exhibited activation energy equal to 149.70 and 80.22 kJ mol−1, respectively. The combined the FTIR and kinetic information makes it possible to suggest the mechanism reaction, which is an inedited data in literature.


Polymerization Degradation Methylene diphenyl diisocyanate Non-isothermal kinetics Thermal studies 



The authors wish to thank CAPES (proc. 024/2012 Pro-equipment), POSMAT/UNESP) and FAPESP (processes: 2013/09022-7 and 2017/08820-8), CNPq (Processes 302267/2015-8 and 302753/2015-0) for financial support, as well as Netzsch-Brazil for providing kinetic computational program (Netzsch kinetics Neo Trial).

Supplementary material

10973_2018_7211_MOESM1_ESM.docx (20 kb)
Supplementary material 1 (DOCX 19 kb)
10973_2018_7211_MOESM2_ESM.docx (20 kb)
Supplementary material 2 (DOCX 20 kb)


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2018

Authors and Affiliations

  • José Eduardo Estevam da Silva
    • 1
  • Rafael Turra Alarcon
    • 1
  • Caroline Gaglieri
    • 1
  • Aroldo Geraldo Magdalena
    • 1
  • Luiz Carlos da Silva-Filho
    • 1
  • Gilbert Bannach
    • 1
  1. 1.Chemistry Department, School of SciencesSão Paulo State University (UNESP)BauruBrazil

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