Fig. 1. Weight loss vs. temperature from the TGA measurements for C₉F₁₉AE (a) and C₉F₁₉AH (b).

Fig. 1. Molecular structures of the non-ionic hydro- fluorocarbon hybrid surfactants: (a) C\begin{document}$ _9 $\end{document}F\begin{document}$ _{19} $\end{document}AE and (b) C\begin{document}$ _9 $\end{document}F\begin{document}$ _{19} $\end{document}AH.

Fig. 1. ¹HNMR spectra (a), 19FNMR spectra (b) and MS spectra (c) for C₉F₁₉AE.

Fig. 2. Synthesis routes of (a) C\begin{document}$ _9 $\end{document}F\begin{document}$ _{19} $\end{document}AE and (b) C\begin{document}$ _9 $\end{document}F\begin{document}$ _{19} $\end{document}AH.

Fig. 2. The surface tensions of the surfactants solutions vs. the natural logarithm of the concentrations for C₉F₁₉AE and C₉F₁₉AH.

Fig. 2. ¹HNMR spectra (a), 19FNMR spectra (b) and MS spectra (c and d) for C₉F₁₉AH.

Fig. 3. TEM images of the micelles formed by C₉F₁₉AH at different concentrations (a) 10 times of CMC, (b) 20 times of CMC, (c) 30 times of CMC, and (d) 40 times of CMC.

Fig. 3. TEM micrographs of spherical micelles formed by C₉F₁₉AE in different concentration: (a) 10 times of CMC, (b) 20 times of CMC, (c) 30 times of CMC, (d) 40 times of CMC; and SEM micrographs of micelles formed by C₉F₁₉AH in different concentration: (e) 10 times of CMC, (f) 20 times of CMC, (g) 30 times of CMC, (h) 40 times of CMC.

Fig. 4. Diagrams showing the fusion of micelles in the solution of C₉F₁₉AH.

Fig. 5. Diagrams for the orientational structure of the adsorbed surfactants on the air/aqueous interface. (a) C₉F₁₉AE, (b) C₉F₁₉AH.