Abstract
In contrast to hydrogenated based systems that led to many studies, fluorinated surfactants have beenlittle reported. Thanks to their high chemical and thermal stability, these compounds are considered assuitable candidates for the synthesis of porous materials with an enhanced hydrothermal stability.This study reports the synthesis of a new fluorinated surfactant, 2-trifluoromethyl-7,7,8,8,9,9,10,10,11,11,12,12,12-tridecafluoro-4-thia-1-dodecanoic acid (FSC) obtained from the thiol-ene radical additionof 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluoro-1-octanethiol onto 2-trifluoromethyl acrylic acid in 85% yield.In the aim of achieving micelles in water to design mesoporous materials according to the cooperativetemplating mechanism, FSC was modified with water-soluble telechelic diamine (Jeffamine) ED-600.The modified surfactant was deeply characterized by spectroscopic methods and the FSC-JeffamineED-600 micellar system was used as porogen to prepare mesoporous materials via the cooperative templatingmechanism. Spherical wormhole-like mesostructured silica materials of high specific surface area(850 m2/g) and homogeneous pore size distribution (ca. 3.4 nm) were obtained by conveniently adjustingthe porogen/silica molar ratio and the hydrothermal conditions.