Thermal behaviour of TEGMMA copolymers obtained by photopolymerization using iron complexes
v. 32 n. 3 (2007), Original articles
v. 32 n. 3 (2007)

Thermal behaviour of TEGMMA copolymers obtained by photopolymerization using iron complexes

Original articles
https://doi.org/10.26850/1678-4618eqj.v32.3.2007.p39-44
Publicado 2007-09-24
Isabel Cristina Rigoli
Universidade de São Paulo, Instituto de Química, São Carlos, Brasil.
Carla Cristina Schmitt Cavalheiro
Universidade de São Paulo, Instituto de Química, São Carlos, Brasil.
Luiz Antonio Ramos
Universidade de São Paulo, Instituto de Química, São Carlos, Brasil.
Miguel Guillermo Neumann
Universidade de São Paulo, Instituto de Química, São Carlos, Brasil.
Éder Tadeu Gomes Cavalheiro
Universidade de São Paulo, Instituto de Química, São Carlos, Brasil.
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Palavras-chave

copolymers; cross-linking
thermogravimetry (TG)
differential scanning calorimetry (DSC)

Como Citar

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
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Resumo

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.
https://doi.org/10.26850/1678-4618eqj.v32.3.2007.p39-44
PDF (English)

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