Thermal behaviour of TEGMMA copolymers obtained by photopolymerization using iron complexes

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Isabel Cristina Rigoli
Carla Cristina Schmitt Cavalheiro
Luiz Antonio Ramos
Miguel Guillermo Neumann
Éder Tadeu Gomes Cavalheiro

Abstract

Copolymers of methyl methacrylate (MMA) and triethyleneglycol
dimethacrylate (TEGDMA) obtained by photoinitiated polymerization using Fe(III)
complexes were submitted to thermogravimetry (TGA) under dynamic air atmosphere
and N 2 , and differential scanning calorimetric analysis (DSC). Thermal events were
observed only between 90 - 110 °C. Glass transitions were observed at ca. 100 °C,
followed by an exothermic peak at 170 °C. The exothermic peak was assigned to a
thermal curing process due to the presence of unreacted vinyl groups of the monomers.
DSC revealed to be a useful tool to evaluate the curing completeness in this kind of
material, using small amounts of sample in relatively short time.

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How to Cite
Rigoli, I. C., Cavalheiro, C. C. S., Ramos, L. A., Neumann, M. G., & Cavalheiro, Éder T. G. (2007). Thermal behaviour of TEGMMA copolymers obtained by photopolymerization using iron complexes. Eclética Química, 32(3), 39–44. https://doi.org/10.26850/1678-4618eqj.v32.3.2007.p39-44
Section
Original articles

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