Structural investigation of epoxy amine networks by mid- and near-infrared spectroscopy

✍ Scribed by Veronika Strehmel; Tom Scherzer

• Publisher: Elsevier Science
• Year: 1994
• Tongue: English
• Weight: 560 KB
• Volume: 30
• Category: Article
• ISSN: 0014-3057
• DOI: 10.1016/0014-3057(94)90300-x

✦ Synopsis

The effects of epoxy amine ratio and accelerator concentration on the chemical structure of networks based on the diglycidylether of bisphenol A cured with 4,4'-diaminodiphenylmethane using imidazole as accelerator were investigated. Mid-i.r. spectra of the networks give qualitative information about the chemical structure of the networks. From near-ix, spectra the content of residual epoxy groups and the concentration of different amine structures in the networks were calculated. For quantitative analysis of the primary amine concentration in the networks a calibration using a model system was necessary. Therefore a mixture of anisole, l-aminophenyl-3-phenoxy-propan-2-ol and aniline was used.