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

Autor(es)

Estevam da Silva, Jose Eduardo ^[1] ; Alarcon, Rafael Turra ^[1] ; Gaglieri, Caroline ^[1] ; Magdalena, Aroldo Geraldo ^[1] ; da Silva-Filho, Luiz Carlos ^[1] ; Bannach, Gilbert ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, UNESP, Chem Dept, Sch Sci, BR-17033260 Bauru, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY; v. 133, n. 3, p. 1455-1462, SEP 2018.
• Citações Web of Science: 2

Resumo

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. (AU)

• Processo FAPESP: 17/08820-8 - Síntese e caracterização de biopolímeros a partir de óleos vegetais e glicerol seguindo os princípios da química verde.
• Beneficiário: Gilbert Bannach
• Modalidade de apoio: Auxílio à Pesquisa - Regular
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• Modalidade de apoio: Auxílio à Pesquisa - Regular