Mesoporous Materials Obtained Using Silicone Surfactants

Mesoporous Materials Obtained Using Silicone Surfactants 

Mesoporous silica was also obtained by mixing the silicone surfactant in Eigure 11.1 with the cationic surfactant cetyl trimethyl ammonium bromide (CTAB) [34]. 

Very recently, Liu reported [38, 39] on the one-pot preparation of ordered mesoporous carbon with triblock copolymer PEO-PPO-PEO using a diblock copolymer poly(dimethylsiloxane)-poly(ethylene oxide) (PDMS-PEO) (M = 3012, 

Transmission electron microscopy (TEM) showed that the samples have a layered stmcture. The layer spacing obtained from the photomicrograph (Eigure 11.8), is about 5 nm, in agreement with the spacing obtained from the XRD pattern (Eigure 11.7). However, no porosimetry data have been reported to date for these materials. 

---

Mesoporous Materials Obtained Using Silicone Surfactants... 

In this context, silicone and fluorinated surfactants, which can impart peculiar properties to mesoporous materials, constitutes a research field that may be exploited to obtain new nanostructured materials for novel applications and many future developments may still arise in this field. The literature on the use of nonhydrocarbon surfactants for the preparation of mesostructured materials remains relatively scarce and many aspects are still unexplored. 

---