The invention relates to a preparation method of hydroxyl terminated perfluoropolyether compound, which takes perfluoropolyether carboxylic acid or ester as raw material; the hydroxyl terminated perfluoropolyether compound is prepared by a reduction reaction; particularly, in the reduction reaction, hydrogen ...
Waltman, R.J., Yen, B.K., White, R.L.: The adhesion of mono- molecular hydroxyl-terminated perfluoropolyether liquid films on the sputtered silicon nitride surface as a function of end group acidity and mobility. Tribol. Lett. 20, 69-81 (2005)...
Dew and bubble point pressures for bifunctional hydroxyl-terminated perfluoropolyether oligomers and supercritical carbon dioxide (SCCO2) were measured in the range (50–80)°C. The oligomers used in the measurements were purified for the present work in order to obtain four fractions with molar ...
1 is a 1-20C linear or branched perfluoroalkyl, isoalkyl, haloalkyl or haloisoalkyl or a 4-60C oxaperfluoropolyether) is polymerized in the presence of a Lewis acid catalyst to obtain a hydroxyl-terminated prepolymer of formula II (wherein (n), (m), R and R1...