Keywords
thermogravimetry (TG)
differential scanning calorimetry (DSC)
How to Cite
Abstract
Copolymers of methyl methacrylate (MMA) and triethyleneglycoldimethacrylate (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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