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Synthesis and Surface Activities of Novel Monofluoroalkyl Phosphate Surfactants
Author(s) -
Wang Qiwei,
Zhang Shuxiang,
Geng Bing,
Zhang Luqing,
Zhao Junqiang,
Shi Jinhui
Publication year - 2012
Publication title -
journal of surfactants and detergents
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.349
H-Index - 48
eISSN - 1558-9293
pISSN - 1097-3958
DOI - 10.1007/s11743-011-1284-1
Subject(s) - chemistry , thermogravimetric analysis , fluorocarbon , krafft temperature , surface tension , thermal stability , aqueous solution , pentoxide , phosphate , phosphorus pentoxide , ammonium , nuclear chemistry , inorganic chemistry , pulmonary surfactant , organic chemistry , vanadium , critical micelle concentration , biochemistry , physics , quantum mechanics , micelle
Two novel environmentally friendly fluorinated surfactants, disodium monofluoroalkyl phosphates were synthesized using phosphorus pentoxide, i.e. H(CF 2 ) 6 CH 2 OPO(ONa) 2 and H(CF 2 ) 6 CH 2 OCH 2 CH 2 OPO(ONa) 2 . The novel synthesized fluorinated surfactants have a high thermal stability on the basis of Thermogravimetric Analysis. Their surface properties were also examined with the aim to have similar surface tensions of dilute aqueous solutions when compared with the conventional fluorocarbon surfactants, ammonium perfluorooctanoate. The two synthesized monofluoroalkyl phosphates can respectively reduce the surface tension of water to 23.73 mN/m at 78.3 mmol/L and 21.38 mN/m at 20.93 mmol/L. In addition, the Krafft points are both below 0 °C.