Reactivity Studies of Maleimide Epoxy Resin With Long Chained Amines

Abstract

After phenylmaleimido group was successfully incorporated into bisphenol-A type epoxy resins (B-13 ) to result in compound possessing both oxirane ring and maleimide reactive groups. The cured maleimide epoxy samples are obtained by thermally curing of the maleimide epoxy (MIE) compounds with aliphatic long chained amines such as Tetraethylenepentamine (TEPA), Bishexamethylenetriamine (BHMT), 2-methyl pentamethylenediamine (2-MPMDA) and 2,2,4-trimethy diamines (2,2,4-TMDA) exhibited excellent thermal stability and good chemical (acid/alkali/solvent) and water absorption resistance. Morphological studies by the SEM technique further confirmed the phase homogeneity net work of the cured systems.

Revolutionizing epoxy performance: A new flame retardant with phosphorus and maleimide for enhanced cure behavior, thermal stability, flame retardancy, and mechanical properties

“…The Fourier transform infra‐red spectrum of neat epoxy and epoxy‐TDPPI composites containing 0.5, 1.0, 1.5, 2.0, and 2.5 wt% of TDPPI are presented in Figure 3. The presence of TDPPI (irrespective of the concentration) suppresses the depth of the band centered at 1024 cm −1 responsible for the C‐O‐C bond in neat epoxy 37,38 . Except the band centered at 1024 cm −1 , all the other bands found in neat epoxy are superimposable with the bands of epoxy‐TDPPI composites.…”

“…The presence of TDPPI (irrespective of the concentration) suppresses the depth of the band centered at 1024 cm À1 responsible for the C-O-C bond in neat epoxy. 37,38 Except the band centered at 1024 cm À1 , all the other bands found in neat epoxy are superimposable with the bands of epoxy- TDPPI composites. This indicates that there is no chemical interaction between the TDPPI and epoxy.…”