| 摘要 |
A synthetic process of perfluoropolyether iodides, by reaction with LiI of monoacyl- or diacyl-halides of perfluoropolyethers, having number average molecular weight from 200 to 3,000, and having the following structure: XCO-CF2OÄ(CF2O)n(CF2CF2O)mÜpCF2-Q wherein: m/n = 0.5-10; p = 0-20; X = Cl, F; Q = H, CF3, X as above defined or COX', wherein X' is Cl, F with the proviso that X'= X; said process being characterized in that the iodination reaction is carried out operating at a temperature from 180 DEG C to 260 DEG C. |
