Aggregation of a semifluorinated n-alkane in perfluorooctane

Semifluorinated chains in 2D-(perfluorododecyl)-alkanes at the air/water interface

“…Compounds with the general formula F(CF 2 ) 12 (CH 2 ) m H, where m = 6, [8][9][10][11][12][13][14][15][16]18, and 20, were synthesized following a procedure described elsewhere [5]. Perfluorododecyl iodide was supplied by Exfluor (USA) and purified by vacuum sublimation prior to use.…”

“…Despite numerous options for molecular structure and composition, the most investigated SFAs are those with long perfluorinated chains. They were characterized in solid state [8][9][10][11], in solutions [12][13][14][15][16], and as Langmuir monolayers [17][18][19].…”

Coarse-grained simulation of amphiphilic self-assembly

“…One could, therefore, argue that these models are not appropriate for studying these self-assembly phenomena in aqueous solutions. As already noted by Lipowsky et al [8], these enthalpic models could, indeed, correspond better to enthalpy-driven self-assembly in non-polar solvents [23][24][25][26]. One could alternatively argue that some degree of entropic rearrangement is actually incorporated into those models via the packing of the solvent around the hydrophobic tail induced by the strong solvent-solvent attraction.…”

Iso-branched semifluorinated alkanes in Langmuir monolayers

“…Semifluorinated alkanes, which join within one molecule two different moieties, are known to be surface active and are called primitive surfactants [8], in spite of the fact that they do not possess any polar head-group. The surface activity of SFAs dissolved in different organic liquids was a subject of numerous research projects carried out in the nineties of the preceding century [9][10][11][12]. In 1991 Gaines signaled that some of SFAs are capable of Langmuir monolayers formation [13].…”