PROCESS FOR THE CHEMICAL MODIFICATION OF POLYETHERAMINES, NOVEL POLYETHERAMINES THAT CAN BE OBTAINED BY THIS PROCESS, AND THE USE OF THESE POLYETHERAMINES
Method of preparation of a modified polyetheramine type (x - (r) - c (o) — nh) br 'by reaction of a polyetheramine (h2n) br, with a halide of an acyl halide x - (r) - c (o) x, in which: (a) is provided a polyetheramine (h2n) br ′ (in which r' represents a polyether and b = 1, 2 or 3) and an acyl halide halide x - (r) - c (o) x (where x represents a halogen, preferably the cl or br, r represents an alkyl, possibly substituted, or an aromatic, possibly substituted), (b) mixing the two reagents in the presence of a base, preferably et3n and / or naoh, and the mixture is left to react the mixture, preferably at a temperature lower than 35°C, preferably less than 20°C, and even more preferably between 0°C. and 10°C, preferably in the absence of solvent (and preferably in the absence of dmf or thf).
