Fluoropolymer Addition to an Epoxy-Amine System: Fluorinated acids

MICCIO L. A.; MONTEMARTINI P.; OYANGUREN P. A.

Rio de Janeiro, Brasil

Simposio; XI International Conference on Advanced Materials; 2009

International Union of Materials Research Societies (IUMRS)

Fluorine containing networks were synthesized using Diglycidyl ether of bisphenol A (DGEBA) and Jeffamine D230 as precursors. A two steps curing was used. In a first step a known excess of one network precursor was reacted with a fluorinated acid, in the second step the other precursor was added in final stoichiometric ratio R=1 (epoxy /amine). Different products were obtained depending on the reaction experimented by the fluorinated acid and the corresponding network precursor. The product of the reaction between fluorinated acid and Jeffamine D230 is ionic (ammonium salt), whereas the reaction product of the same acid with the epoxy produced a covalent bond.