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Indian Journal of Engineering and Materials Sciences (IJEMS) >
IJEMS Vol.12 [2005] >
IJEMS Vol.12(3) [June 2005] >
| Title: | Curing and thermal behaviour of epoxy resin in the presence of aromatic imide-amines |
| Authors: | Sharma, Pooja
Kukreja, Parveen
Choudhary, Veena
Narula, A K |
| Issue Date: | Jun-2005 |
| Publisher: | CSIR |
| IPC Code: | C08L63/00 |
| Abstract: | The paper describes
the synthesis and characterization of aromatic imide-amines obtained by
reacting pyromellitic dianhydride (P)/or benzophenone 3,3′,
4,4′-tetracarboxylic dianhydride (B) (1 mol) with excess of 4,4'-diaminodiphenyl ether [E]/or 4,4′-diaminodiphenyl methane [M]/or
4,4′-diaminodiphenyl sulfone [S] and their use as curing agents for diglycidyl
ether of bisphenol-A (DGEBA). Structural characterization of imide-amines was
done using FTIR, 1H-NMR,13C-NMR spectroscopy and
elemental analysis. These aromatic imide-amines were used as curing agents in
order to investigate the effect of structure on the curing and thermal
behaviour of diglycidyl ether of bisphenol-A (DGEBA). Curing behaviour of DGEBA
in the presence of stoichiometric amounts of aromatic imide-amines was
investigated by differential scanning calorimetry (DSC). A broad exothermic
transition in the temperature range of 180-230°C was observed in all the
samples. The peak exotherm temperature (Tp)
was lowest in case of imide-amines based on B and M and highest in case of
imide-amines based on P/or B and S. Thermal stability of the isothermally cured
resins was investigated using dynamic thermogravimetry in nitrogen atmosphere.
The char yield was highest for resin cured with imide-amines based on B and E. |
| Page(s): | 259-264 |
| ISSN: | 0975-1017 (Online); 0971-4588 (Print) |
| Source: | IJEMS Vol.12(3) [June 2005]
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