Abstract
The overwrite individual rate of conversion of the vinyl-ester and styrene double bonds of Derakane 411-C-50 was analyzed by Fourier transform infrared spectroscopy for 30 °C and 90 °C isothermal curing. Inspection of the fracture surface topography by atomic force microscopy revealed that the fracture toughness of samples cured at 30 °C and post-cured was three times larger than that of samples cured at 90 °C and post-cured. Results based on interaction energies from solubility parameters predict that the interaction energy between the growing polymer network and the monomers becomes increasingly endothermic with increasing conversion and that isothermal cure temperature significantly influences its value based on differences in copolymer composition.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 756-757 |
| Number of pages | 2 |
| Journal | American Chemical Society, Polymer Preprints, Division of Polymer Chemistry |
| Volume | 40 |
| Issue number | 2 |
| State | Published - Aug 1999 |
| Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Polymers and Plastics