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Intercrosslinked polymer networks by simultaneous curing of unsaturated polyesters and bismaleimide resins
Author(s) -
Abbate M.,
Di Liello V.,
Martuscelli E.,
Musto P.,
Ragosta G.,
Scarinzi G.
Publication year - 1994
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.19940780122
Subject(s) - thermosetting polymer , curing (chemistry) , materials science , monomer , unsaturated polyester , polyester , isothermal process , composite material , polymer , fourier transform infrared spectroscopy , toughness , modulus , kinetics , polymer chemistry , chemical engineering , physics , engineering , thermodynamics , quantum mechanics
The modification of an unsaturated polyester resin by incorporating a second co‐reactive monomer as a thermosetting bismaleimide is described The bismaleimide was readily dissolved in the uncured polyester matrix up to a concentration of about 20% wt. FTIR isothermal measurements indicated that the kinetics and the mechanism of the curing process were strongly affected by the presence of the bismaleimide. The resulting inter‐crosslinked network showed a gradual enhancement of the elastic modulus in a wide range of temperatures by increasing the bimaleimide amount in the system. This enhancement was obtained without altering the intrinsic toughness of the matrix.