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

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Abstract

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.

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Acknowledgements

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).

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Authors and Affiliations

  1. Chemistry Department, School of Sciences, São Paulo State University (UNESP), Bauru, SP, 17033-260, Brazil

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

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  1. José Eduardo Estevam da Silva
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  2. Rafael Turra Alarcon
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  3. Caroline Gaglieri
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  4. Aroldo Geraldo Magdalena
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  5. Luiz Carlos da Silva-Filho
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  6. Gilbert Bannach
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Corresponding author

Correspondence to Gilbert Bannach.

Additional information

The present article is based on the lecture presented at SiAT VIII conference in Punta Grossa - Brazil on August 13–15, 2017.

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da Silva, J.E.E., Alarcon, R.T., Gaglieri, C. et al. New thermal study of polymerization and degradation kinetics of methylene diphenyl diisocyanate. J Therm Anal Calorim 133, 1455–1462 (2018). https://doi.org/10.1007/s10973-018-7211-1

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  • DOI: https://doi.org/10.1007/s10973-018-7211-1

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