Abstract
The addition of ethylene oxide (EO) to N- (perfluoroacyl) ethylenediamine (N F) in the presence of Rf =n-C3F7 or n-C7F15 in benzene was carried out at 50130°C in an autoclave without catalysts. The addition reaction proceeded easily and stepwise to yield 1 : 1 and 2 : 1 adducts at low temperature. There products were isolated and measured by gel permeation chromatography. The rate of addition was higher at higher concentration of EO. When the reaction was carried out at [EO] / [NF] =12 at 8090°C for 5 hours, yield of the 2 : 1 adduct was 98%.
Above 90°C, the marked formation of byproducts occurred.
The surface activity of the adduct with Rf =n-C7F15-was found better than that with Rf =n-C3F7.
