P. Musto et al., The transport of water in a tetrafunctional epoxy resin by near-infrared Fourier transform spectroscopy, POLYMER, 41(2), 2000, pp. 565-574
An epoxy resin formulation composed of tetraglycidyl-4,4'-diamino diphenylm
ethane (TGDDM) and 4,4'diamino diphenyl sulfone (DDS) was investigated by F
ourier transform near infrared (FT-NIR) spectroscopy and dynamic-mechanical
analysis. Both techniques have demonstrated the essentially complete cure
state of the resin with the adopted curing schedule. A novel feature of thi
s work is the possibility of monitoring the transport of water into the res
in by using of an FT-MIR spectrometer as a detector in place of the current
ly employed gravimetric detectors. The data gathered at different temperatu
res have revealed a good agreement with conventional gravimetric measuremen
ts, which verifies the reliability and accuracy of the experimental approac
h presented herein. (C) 1999 Elsevier Science Ltd. All rights reserved.