Abstract
An investigation was carried out on the effect of electrophilicity of amine molecule on the epoxy/amine reaction kinetics. Model systems, containing amines with different electron-donating and/or -withdrawing characteristics, were prepared, reacted, and investigated by high-performance liquid chromatography (HPLC). Reaction rate constants and activation energies were determined for all systems based upon a kinetic model of epoxy/amine reactions. It was established that an electron-donating group on the amine molecule enhanced the reaction rate and lowered the activation energy. It was also found that the reactivity ratio of primary amine/epoxy and secondary amine/epoxy reactions was dependent on the amine structure, but independent on temperature.
Original language | English (US) |
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Pages (from-to) | 7589-7600 |
Number of pages | 12 |
Journal | Macromolecules |
Volume | 27 |
Issue number | 26 |
DOIs | |
State | Published - Dec 1 1994 |
ASJC Scopus subject areas
- Organic Chemistry
- Polymers and Plastics
- Inorganic Chemistry
- Materials Chemistry