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Comparative study by DSC and FTIR techniques of an unsaturated polyester resin cured at different temperatures
Author(s) -
de la Caba Koro,
Guerrero Pedro,
Mondragon Iñaki,
Kenny José M.
Publication year - 1998
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/(sici)1097-0126(199804)45:4<333::aid-pi932>3.0.co;2-t
Subject(s) - differential scanning calorimetry , fourier transform infrared spectroscopy , polyester , styrene , materials science , polymerization , polymer chemistry , autocatalysis , polyester resin , copolymer , composite material , chemical engineering , polymer , chemistry , organic chemistry , thermodynamics , catalysis , physics , engineering
The polymerization of a commercial polyester resin was investigated by differential scanning calorimetry (DSC). The conversion profiles were obtained in the temperature range 60–80°C. The autocatalytic model satisfactorily describes the experimental data. Fourier transform infrared spectroscopy (FTIR) measurements were also made in order to obtain both the styrene and polyester unsaturations conversions, which were compared to the overall conversion obtained by DSC. Overall conversion measured by DSC lies between styrene and polyester C=C bond conversion obtained by FTIR. © 1998 SCI.