On the second analytical path the heavier components are grouped into hexanes, heptanes and octanes, with the components larger than n-octane
back-flushed to provide a C9+ grouped component value.
Yi and Cai  used perfluoroalkylated pyridine as a catalyst; benzaldehyde was slowly added into a mixture of malononitrile, n-octane and the catalyst and was stirred for 1.
Water and n-octane were used as solvents for [2-aemim][[PF.
5 hours 99% n-octane and Pyridine perfluorodecaline Amino acids Catalyst Reaction Yield Solvent Time Glycine 22 hours 77% Ionic liquid Proline 30 82% Water minutes Table 2: The reaction time and yield for different amino acid catalysts used in the condensation of benzaldehyde with malononitirle.
The measurement results of water contact angles and the solvent absorptions in water and n-octane for cured films showed that the water and the oil repellency for FSiPUA had been improved significantly with a suitable content of fluorine and siloxane.
The weighed cured film was dipped in deionized water or n-octane at room temperature for 24 h.
Water and oil resistances of cured film for SiPU and FSiPUA were investigated by the solvent absorption in water and in n-octane, respectively.
In opposition to the WR property, the solvent absorptions in n-octane for SiPU and FSiPUA (A-series) increase as the siloxane content increases, and the value of solvent absorption is much higher than that in water.
6) decrease, while the solvent absorptions in n-octane (shown in Fig.
Fractionation was carried out to characterize the virgin grade by sequentially extracting soluble fractions with n-hexane, n-heptane, and n-octane
at the boiling temperature of each solvent for two days using a Soxhlet extraction apparatus and four powdery iPP fractions, the n-hexane soluble, n-heptane soluble, n-octane
soluble, and n-octane
insoluble, were collected (1, 11-13).