Branched zwitterionic gemini surfactants micellization and interaction with ionic surfactants

Alami, E.; Holmberg, Krister; Seredyuk, Victor A.; Menger, F. M.

doi:10.1016/s0927-7757(03)00300-5

Cited by 62 publications

(57 citation statements)

References 33 publications

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“…This similar effect was also reported by Menger 24 for the smaller effect of a decreasing cmc with increasing effective chain length. The cmc values of these gemini surfactants decrease as C8 -…”

Section: Surface Activity Of Zwitterionic Amphiphilessupporting

confidence: 89%

“…As shown in Table 1, the effect of influence of methyl group on spacer of these amphiphiles on the cmc is remarkable as compared with the linear chain length analogue i.e. C8L --2-C12 and C8L --2-C14 and branched zwitterionic gemini surfactants reported earlier by Menger 23,24 . This linear and branched counterpart has much higher values of both cmc and γ cmc .…”

Section: Surface Activity Of Zwitterionic Amphiphilesmentioning

confidence: 72%

“…In other words, as the hydrophobic chain length increases from 12 to 16 at the cationic moiety, the cmc decreases for 3a, 3b, and 3c surfactants. Similarly, the branched analogue reported by Menger 24 where one linear chain with a carbon number of 9, 10 or 12. The effect of decreasing cmc was also observed in the 4a, 4b, and 4c amphiphiles having branched spacer i.e.…”

Section: Surface Activity Of Zwitterionic Amphiphilesmentioning

confidence: 81%

“…Jaeger et al in 1996 gives the first report on anionic and cationic headgroups based zwitterionic geminis 15 . This ideas was followed by Menger in 1999Menger in , 2001Menger in -2003, who synthesized a great variety of anionic-cationic headgroups gemini surfactants 16, 22 24 .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Diester-containing Zwitterionic Gemini Surfactants with Different Spacer and Its Impact on Micellization Properties and Viscosity of Aqueous Micellar Solution

Patil

Pratap

2016

J. Oleo Sci.

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Section: Surface Activity Of Zwitterionic Amphiphilessupporting

confidence: 89%

Section: Surface Activity Of Zwitterionic Amphiphilesmentioning

confidence: 72%

Section: Surface Activity Of Zwitterionic Amphiphilesmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Diester-containing Zwitterionic Gemini Surfactants with Different Spacer and Its Impact on Micellization Properties and Viscosity of Aqueous Micellar Solution

Patil

Pratap

2016

J. Oleo Sci.

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“…(15,16) Therefore, we used NR 4 + s as membraneforming materials and examined the sensitivity and detection ability of the membranes for anionic surfactants with counterions.…”

Section: Change In Membrane Potential Due To Difference In Side-chainmentioning

confidence: 99%

Simple Screening Method for Pesticide Residues by Detecting Coexistent Adjuvants Using Potentiometric Measurement

Umino

Habara

Toko

2012

Sensors and Materials

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The screening method for pesticide residues by detecting anionic surfactants used as pesticide adjuvants was examined by membrane potential measurement using a surfactant-sensing membrane composed of tridodecylmethylammonium chloride. A sulfonate anionic surfactant, sodium dodecyl sulfate, was detected at under 10 ppb. In the experiments on pseudopesticides obtained by mixing standard pesticides (i.e., chlorfenapyr, imazalil, and glyphosate) and sodium dodecyl sulfate, our membrane showed no response to the active ingredients of the pesticides but showed a specific response to a coexisting surfactant, indicating the feasibility of our method as a primary screening method.

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Anti‐fouling performance of polyamide microfiltration membrane modified with surfactants

Maitam

Nicolini

Kronemberger

2022

J of Applied Polymer Sci

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Fouling is the main limitation in membrane separation processes. This phenomenon occurs by the adsorption/deposition of particles, colloids, or biomolecules on the membrane surface and it pores. This process can severely affect membrane performance due to the decrease in permeate flux, lifetime reduction, and selectively and separability changes. Studies have concluded that physicochemical superficial characteristics of membranes is a key for understanding and mitigating fouling. In this study, the surface of a commercial microfiltration membrane (MF) was modified with commercial surfactants and a biosurfactant to reduce fouling and improve its performance. Coated (MF‐SDS, MF‐CTAB, MF‐Tween80, and MF‐Rha) and uncoated membranes were characterized by Fourier‐transform infrared spectroscopy (FT‐IR), contact angle, and zeta potential. Microfiltration tests were performed by using Saccharomyces cerevisiae yeast suspensions as model fouling agent at different transmembrane pressures and feed flow rates. Interfacial analysis indicated that the adsorption of surfactants on the membranes' surface is responsible for significant changes in the membrane's hydrophilicity and superficial charges. Considering filtration of the model suspensions, the permeate flux values were increased for all coated membranes compared to the uncoated one. Long‐term experiments showed a high stability of the rhamnolipid adsorption on the membrane surface, proving its effectiveness in fouling reduction.

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Branched zwitterionic gemini surfactants micellization and interaction with ionic surfactants

Cited by 62 publications

References 33 publications

Diester-containing Zwitterionic Gemini Surfactants with Different Spacer and Its Impact on Micellization Properties and Viscosity of Aqueous Micellar Solution

Diester-containing Zwitterionic Gemini Surfactants with Different Spacer and Its Impact on Micellization Properties and Viscosity of Aqueous Micellar Solution

Simple Screening Method for Pesticide Residues by Detecting Coexistent Adjuvants Using Potentiometric Measurement

Anti‐fouling performance of polyamide microfiltration membrane modified with surfactants

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