CF3CF2CF2C(CF3)2-based fluorinated surfactants with high surface activity

摘要: The ever-increasing environmental and toxicity concerns have resulted in the widespread development of fluorosurfactants without long perfluorinated chain (≥ C8). surveys reported that perfluoroether chains are easier to degrade than fluorinated due better flexibility ether bond. Herein, four novel kinds with a branched were reported, which can be synthesized via simple economical route. These surfactants all exhibited extremely high surface activity. effect salt pH on activities newly prepared studied. results showed these possessed excellent acid alkali resistance except anionic surfactant was slightly sensitive acid. Interfacial tension oil/water thermodynamic properties further investigated for purpose special applications. This series had great thermal stability cationic spread oil under condition low concentration. indicate possess good prospect industrial