Kinetic studies in micellar solutions of novel bromide mono- and dimeric surfactants with phenyl and cyclohexyl rings in the head group

2012 ◽  
Vol 409 ◽  
pp. 52-60 ◽  
Author(s):  
Victoria Isabel Martín ◽  
María del Mar Graciani ◽  
Amalia Rodríguez ◽  
María Luisa Moyá
Keyword(s):  
Kinetic Studies ◽  
Head Group ◽  
Micellar Solutions ◽  
Dimeric Surfactants

scholarly journals Synthesis of functionalized by an oxime group surfactants on the basis of imidazole, pyridine and alkylamines

2019 ◽  
Vol 85 (8) ◽  
pp. 94-105
Author(s):  
Alexander Shumeiko ◽  
Michael Kostrikin ◽  
Ilya Kapitanov ◽  
Anna Serdyuk ◽  
Nikolay Burakov ◽  
...  
Keyword(s):  
Thin Layer ◽  
Solid Phase ◽  
Internal Standard ◽  
Direct Interaction ◽  
Head Group ◽  
Oxime Group ◽  
Alkyl Radicals ◽  
Phase Liquid ◽  
Composition Structure ◽  
Dimeric Surfactants

Methods have been developed for the synthe-sis of a series of monomeric and dimeric surfactants functionalized by an oxime group based on imid-azole, pyridine and alkylamines. Alkyl radicals of varying degrees of branching were used, both as sub-stituents at the nitrogen atom of the head group and as spacers in the formation of dimeric products. This allowed to create a whole spectrum of supramo-lecular systems with different physicochemical pro-perties and reactivity.Methods of obtaining a number of intermedi-ate products were improved, primarily for the reac-tion of the imidazole alkylation using interphase ca-talysis conditons — solid phase-liquid. The method of obtaining surfactants based on imidazole consisted in the interaction of alkylimidazoles with chloro-acetaloxime in a suitable solvent or with chloro-acetone and subsequent reaction with a hydroxyla-mine solution. In the preparation of pyridine-based surfactants, the corresponding oxo-substituted pyri-dine was reacted with a hydroxylamine solution, fol-lowed by reaction of the obtained product with al-kyl halide. A method has been developed for the syn-thesis of functionalized surfactants based on alipha-tic amines, where for monomeric products a path is chosen that is associated with the sequential alkyla-tion of 1-chloroacetoxime with dimethylamine and dodecyl bromide, and for dimeric ones, the direct interaction of 1,3-dichloroacetoxime with 1,1-dime-thyl-1-dodecylamine.The composition, structure and purity of the obtained compounds were confirmed by NMR spec-troscopy, thin-layer chromatography and elemental analysis. NMR spectra were recorded on a BRUKER Avance II 400 instrument (400 MHz), TMS was used as an internal standard. Chromatography in a thin layer of silica gel was performed on Merck Si-licaGel 60 F254 plates (eluent — chloroform: meth-anol = 10:1).The data presented by us testify to the pro-spects of the chosen pathway for structural modifica-tion of surfactants functionalized by the oxime group, and give direction for the further design of such microheterogeneous systems.

Conductometric, Surface Tension, and Kinetic Studies in Mixed SDS−Tween 20 and SDS−SB3-12 Micellar Solutions

Langmuir ◽  
2004 ◽  
Vol 20 (25) ◽  
pp. 10858-10867 ◽  
Author(s):  
María Muñoz ◽  
Amalia Rodríguez ◽  
María del Mar Graciani ◽  
María Luisa Moyá
Keyword(s):  
Surface Tension ◽  
Kinetic Studies ◽  
Tween 20 ◽  
Micellar Solutions

Micellar catalysis in mixed anionic/cationic surfactant systems

1994 ◽  
Vol 72 (12) ◽  
pp. 2443-2446 ◽  
Author(s):  
Yvette L. Favaro ◽  
Vincent C. Reinsborough
Keyword(s):  
Cationic Surfactant ◽  
Sodium Dodecylsulfate ◽  
Kinetic Studies ◽  
Micellar Catalysis ◽  
Stopped Flow ◽  
Complexation Reaction ◽  
Dodecyltrimethylammonium Bromide ◽  
Micellar Solutions ◽  
Decyltrimethylammonium Bromide ◽  
Anionic Micelles

Dye solubility and stopped-flow kinetic studies were conducted in sodium dodecylsulfate/dodecyltrimethylammonium bromide and sodium dodecylsulfate/decyltrimethylammonium bromide micellar solutions with excess anionic surfactant. The enhanced rate in the presence of anionic micelles of the Ni2+(aq)/pyridine-2-azo-p-dimethylaniline (PADA) complexation reaction was used as a probe of the mixed micellar situation. PADA solubilities and the kinetic parameters derived through the Robinson model for micellar catalysis were consistent with a complete incorporation of the cationic surfactant into the sodium dodecylsulfate micelles.

Binary mixtures with novel monomeric and dimeric surfactants: Influence of the head group nature and number of hydrophobic chains on non-ideality

2012 ◽  
Vol 368 (1) ◽  
pp. 326-335 ◽  
Author(s):  
Victoria Isabel Martín ◽  
Amalia Rodríguez ◽  
María del Mar Graciani ◽  
María Luisa Moyá
Keyword(s):  
Binary Mixtures ◽  
Head Group ◽  
Dimeric Surfactants

Effects of head group size on the reaction methyl 4-nitrobenzenesulfonate + Br− in water-ethylene glycol cetyltrialkylammonium bromide micellar solutions

2007 ◽  
Vol 39 (6) ◽  
pp. 346-352 ◽  
Author(s):  
María Amalia Rodríguez ◽  
María Muñoz ◽  
María del Mar Graciani ◽  
Gaspar Fernández ◽  
María Luisa Moyá
Keyword(s):  
Ethylene Glycol ◽  
Group Size ◽  
Head Group ◽  
Micellar Solutions
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