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The surface dilational rheological behaviors of two anionic surfactants with aromatic group in branch, sodium N-2-(phenoxy)-tetradecanolytaurinate (12+B-T) and sodium N-2-(2-naphthoxy)-tetradecanolytaurinate (12+N-T), were expounded by oscillating bubble method and interfacial tension relaxation method. The foam properties of both surfactants were also investigated by air flowing method. The results...
In the present work, the influences of a model organic acid (oleic acid) on the interfacial dilational properties of different types of surfactants (anionic surfactant sodium 4,5-diheptyl-2-propylbenzene sulfonate 377 and asymmetrical anionic Gemini surfactant C 12 COONa-p-C 9 SO 3 Na) and polymers (HPAM and HMPAM) systems were studied at decane–water interface, respectively,...
A series of anionic gemini surfactants called (oligooxa)-α,ω-bis(m-alkylbenzene sulfonate) with different length in spacer and in hydrophobic chain, C 8 E x C 8 (x=1, 2, 3, 4, 8) and C n E 4 C n (n=8, 10, 12), have been synthesized from 4-n-alkylphenol and their basic physicochemical properties are investigated. The results indicate that they are different...
Adsorption and self-organization of C 16 E n (n=1 and 3) (mono and triethylene glycol hexadecyl ether) have been studied on HOPG by using scanning tunneling microscopy (STM). Both the molecules form stripe patterns. The angle between the alkyl axis and the molecule row is about 30°. The alkyl chains of C 16 E molecules can be well resolved. The adsorbed structure has a bend,...
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