Mixed fluorinated–hydrogenated surfactant-based system: Preparation of ordered mesoporous materials

Phase behavior of semifluorinated catanionic mixtures: Head group dependence and spontaneous formation of vesicles

“…It is well known that mixed systems composed of one fluorinated and one hydrogenated surfactant can, under some circumstances, form two types of micelles, due to the poor miscibility of both kinds of chains [19][20][21]. The miscibility of these mixtures leads to segregation and phase separation [22].…”

Investigation of mixed fluorinated and triblock copolymer liquid crystals: Imprint for mesostructured bimodal silica

“…Indeed, they are of particular interest for catalysis, for sorption and for the engineering of pore systems [40,41]. Many studies are focused on the synthesis of meso-macro, micro-macro or micro-mesoporous materials [42][43][44][45][46][47][48], but only a few of them deal with systems in which bimodal mesopore structures are present [20][21][22][23][24]. In addition, the recovered materials adopt either disordered bimodal mesopore arrangements or ordered mono-modal mesopore with small size template molecular systems embedded in larger entities [49].…”

“…and fluorinated compounds, either mixed micelles containing both surfactants in a well-defined proportion, or two kinds of micelles enriched in one of the two components can be formed [4,[12][13][14][15][16][17][18]. In regards to the synthesis of mesoporous materials, we can thus take benefit of these systems to design bimodal mesostructures on the condition that the two surfactants have hydrophobic chains with different sizes [19][20][21][22][23][24]. For example Antionetti et al have reported the synthesis from mixed micellar solutions of immiscible fluorinated and hydrogenated surfactants of mesoporous silica monoliths with bimodal pore size distribution via the nanocasting process [20].…”

Synthesis of mesoporous silica materials (MCM‐41) using silica fume as the silica source in a binary surfactant system assisted by post‐hydrothermal treatment and its Pb2+ removal properties

“…[3] It is observed that mixed surfactant systems have the potential to impart controlled combinations of functionality and pore structure to mesoporous silica. [4][5][6] In particular, mixed surfactants have been extensively applied to synthesize various mesoporous materials including silica and other metal oxides used in catalysis, adsorption, membrane filters, and separation areas. [7][8][9] Increasing the pore size of mesoporous materials can not only expand the range of the pore structures in which functional groups are selected, but also provide a large space that assures the ion clusters load into the pores successfully.…”