Efficient synthesis of new perfluorinated or hybrid amphiphilic surfactants

Fluorinated cotelomers based on vinylidene fluoride (VDF) and hexafluoropropene (HFP): Synthesis, dehydrofluorination and grafting by amine containing an aromatic ring

“…As this signal is very close to that of the aromatic protons of the amine in spectrum c, it is difficult to provide a quantitative conclusion. The absence of a broad signal close to 5.10 ppm in spectrum c proves that there is no CF 2 -CH C-N bonds [34]. Moreover, the absence of any signal in spectrum c of Fig.…”

“…Moreover, the absence of any signal in spectrum c of Fig. 2 at 4.00 ppm highlights an absence of CF 2 -CH-N groups [34]. Finally, taking the results from 1 H and 19 F NMR into account, the grafting of amine can lead to the following (b) and (x) structures: Spectrum c in Fig.…”

“…Condensation of an amine leads to unsaturated enamine compounds [33,34]. Fluorinated compounds have been synthesized and the reaction pathway of their crosslinking with amine studied by FTIR [35], however the grafting (or crosslinking) of amines onto fluorinated (model) molecules has not at this stage been studied by 19 F and 1 H NMR spectroscopy.…”

Proton conductivity properties of acid doped fluoroalkylated 1,2,3-triazole

“…The synthesis of the triazole containing molecule was carried out according to literature [16,17] (Scheme 1). Ester derivative of 3-azido-3-(perfluoroalkyl)propenoic acid, 1 (2 mmol) was dissolved in acetone (9 ml) and water (1 ml), and sodium azide (10 equiv.)…”

Highly fluoroalkylated amphiphilic triazoles: Regioselective synthesis and evaluation of physicochemical properties

“…It is well-known that the introduction of fluorine atoms or a fluoroalkylgroup into heterocyclic compounds may have a profound influence on their biological and physical properties [11]. Moreover, development of amphiphilic non-ionic fluorinated compounds with specific biological and physical properties has been a continuous subject in our work [12][13][14].…”