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Citation: HU Ying-Mo. Synthesis of a Series of Novel Cationic Fluoro-Surfactants[J]. Chinese Journal of Applied Chemistry, ;2009, 26(9): 1104-1107. shu

Synthesis of a Series of Novel Cationic Fluoro-Surfactants

HU Ying-Mo ^,

1.
School of Materials Science and Technology, China University of Geosciences, Beijing 100083

Corresponding author: HU Ying-Mo,
Received Date: 5 September 2008
Available Online: 29 November 2008

N,N-Dimethyl-N'-(2-trifluorometyl-1-pentafluoroethyl) perfluoro-propenyl propane diamine(Ⅰ) was prepared via the reaction of hexafluoropropene dimer and N,N-dimethyl propylene diamine with the molar ratio of 1:1 at about 35 ℃ for 8 h,and the structure of compound Ⅰ was identified by IR and NMR.Then compound Ⅰ was respectively reacted with bromoethane,bromopropane,bromobutane,bromohexane,bromooctane and bromolaurane to get a series of quaternary ammonium cationic fluoro-surfactants.The results indicate that the novel fluoro-containing quaternary ammonium cationic surfactants had rather low surface tensions(17.8~28.1 mN/m),low critical micelle concentrations(2.03~1.58 mmol/L),and their Krafft points were below 0 ℃,showing execllent solubility in water.
- hexafluoropropene dimmer,
- cationic fluoro-surfactant,
- surface tension,
- critical micelle concentration
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