62607-32-3Relevant academic research and scientific papers
Effect of a fluorinated sodium bis(2-ethylhexyl) sulfosuccinate (aerosol-OT, AOT) analogue surfactant on the interfacial tension of CO 2 + water and CO2 + Ni-plating solution in near- and supercritical CO2
Park, Ji-Young,Lim, Jong Sung,Yoon, Chul Hoon,Lee, Chang Ha,Park, Kwon Pil
, p. 299 - 308 (2005)
The effect of a fluorinated sodium bis(2-ethylhexyl) sulfosuccinate (aerosol-OT, AOT) analogue surfactant (sodium salt of bis(2,2,3,3,4,4,5,5- octafluoro-1-pentanol) sulfosuccinate) on the interfacial layer of supercritical CO2 + water and supercritical CO2 + Ni-plating solution systems was investigated by measuring via the capillary rise method. These interfacial tensions were measured in the pressure range of (0.1 to 20.0) MPa at multiple temperatures for each of five interfaces: (1) CO2 + water system at (293.15, 298.15, 311.15, and 344.15) K; (2) CO2 + Ni-plating solution system at (313.15, 328.15, and 344.15) K; (3) CO2 + Ni-plating solution + F-AOT surfactant (0.1 and 0.3 mass %) system at (313.15, 328.15, and 344.15) K; (4) CO2 + Ni-plating solution + ethanol (10 and 20 vol %) system at 328.15 K; and (5) CO2 + Ni-plating solution + F-AOT surfactant (0.1 mass %) + ethanol (10 vol %) system at (313.15, 328.15, and 344.15) K. The reliability of the apparatus was confirmed by comparing the experimental data with literature data for the CO2 + water system at (311.15 and 344.15) K The individual addition of the F-AOT surfactant and ethanol reduced the interfacial tension for the CO2 + Ni-plating solution system; however, the simultaneous addition of these two substances caused the opposite effect on the interfacial tension.
Synthesis of Anionic Surfactants Having Two Polyfluoroalkyl Chains and Their Flocculation Ability for Dispersed Magnetite Particles in Water
Yoshino, Norio,Komine, Noboru,Suzuki, Jun-ichi,Arima, Yuki,Hirai, Hidefumi
, p. 3262 - 3266 (2007/10/02)
Four anionic surfactants having two polyfluoroalkyl chains in a molecule, sodium salt of bis(1H,1H,2H,2H-heptadecafluorodecyl) 2-sulfosuccinate, CF3(CF2)7(CH2)2OCOCH2CH(SO3Na)COO(CH2)2(CF2)7CF3, sodium salt of bis(1H,1H,9H-hexadecafluorononyl) 2-sulfosuccinate, H(CF2)8CH2OCOCH2CH(SO3Na)COOCH2(CF2)8H, sodium salt of bis(1H,1H,7H-dodecafluoroheptyl) 2-sulfosuccinate, H(CF2)6CH2OCOCH2CH(SO3Na)COOCH2(CF2)6H and sodium salt of bis(1H,1H,5H-octafluoropentyl) 2-sulfosuccinate, H(CF2)4CH2OCOCH2CH(SO3Na)COOCH2(CF2)4H, were prepared from maleic anhydride, the corresponding alcohols having a polyfluoroalkyl chain and sodium hydrogensulfite.The flocculation and redispersion abilities of these surfactants against dispersed magnetite particles in water have been examined in comparison with other four anionic surfactants having a single polyfluoroalkyl chain in a molecule; sodium pentadecafluorooctanoate, CF3(CF2)6COONa, sodium 9H-hexadecafluorononanoate, H(CF2)8COONa, sodium 7H-dodecafluoroheptanoate, H(CF2)6COONa, and sodium 5H-octafluoropentanoate, H(CF2)4COONa.These abilities were estimated by measurement of the contact angle against water using pelleted surface-modified magnetite.The abilities of the surfactants having two polyfluoroalkyl chains against flocculation-redispersion were superior to those of the surfactants having one polyfluoroalkyl chain.Especially, sodium salt of bis(1H,1H,2H,2H-heptadecafluorodecyl) 2-sulfosuccinate was the most effective surface active agent for these abilities.
