Samples of epoxy resin (EP) cured with polymercaptans (SH), SH in presence of polyamine amide, and polyamine modified compounds , respectively, SE 1,2 and 3, were prepared according to established conditions by DSC analysis of EP and curing agent (AC) or hardeners, and analyzed by FT-IR transmission techniques (KBr pellets, uncontroled pyrolysis and controled pyrolysis-FT-IR) (CONTROLPIR/FT-IR), in the temperature range found from TG analysis of SE 1,2 and 3, for characterizing the AC. The FT-IR absorptions of liquid pyrolysate obtained by CONTROLPIR/FT-IR were evaluated, in comparison to reference spectrum of AC The characterization of hardeners was also possible by the analysis of each SE with TG/FT-IR technique, in comparison to the reference spectrum of degradation product for each AC used.
Epoxy resin; curing agent; polymercaptans; polyamine amide; modified amine; controled pyrolysis-FT-IR; coupled TG/FT-IR
