Abstract
The fluorine-containing epoxy resin, 2-trifluorotoluene diglycidylether (FER) was prepared by reaction of 2-chloro-α,α,α- trifluorotoluene with glycerol diglycidylether in the presence of pyridine catalyst. Curing behavior of FER/DDM system was investigated using dynamic and isothermal DSC. Cure activation energy (Ea) was determined by Flynn-Wall-Ozawa's equation. The rheological properties of FER/DDM system were studied under isothermal condition using a rheometer. Cross-linking activation energy (Ec) was determined from the Arrhenius equation based on gel time and curing temperature. As a result, the chemical structure of FER was confirmed by FT-IR, 13C NMR, and 19F NMR spectroscopy. The cure activation energy of FER/DDM system was 53.4 kJ/mol and conversion and conversion rate were increased with the curing temperature. The cross-linking activation energy of FER/DDM system was 41.6 kJ/mol and gel time was decreased with the curing temperature.
Original language | English |
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Pages (from-to) | 176-182 |
Number of pages | 7 |
Journal | Polymer (Korea) |
Volume | 27 |
Issue number | 3 |
State | Published - May 2003 |
Externally published | Yes |
Keywords
- Activation energy
- Cure behavior
- Epoxy resins
- Fluorine
- Rheological properties