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Showing 1 to 10 of 10 for “"gemini surfactants"”.
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Hydrate Formation Using Dowfax Gemini Surfactants
… This work investigates the effect of two Dow surfactants, Dowfax 2A1 and Dowfax C6L, on gas hydrate formation, first by determining the adsorption isotherms via liquid-liquid titration methods, and then investigating the role in methane hydrate formation in a non-stirred batch reactor. Both …
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Langmuir Monolayers of Minimal-linker Dimeric Surfactants
Surfactants are ubiquitous, useful compounds of immense practical significance in key industries ranging from drug-delivery to agrochemicals. The performance of these commercially valuable products depends largely on their chemical structure. The objective of the research presented in this thesis …
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THERMODYNAMIC STUDIES OF BIS(QUATERNARYAMMONIUM) AND (N-ALKYL-) IONIC SURFACTANTS
… and cyclododecyl c12-s-c12 (where s = 3,4,6) gemini surfactants containing dimethylammonium bromide head groups have been studied. The synthesized surfactants have been characterized according to their cmc, a, and surface coverage at the air-water interface. The cmc is found to decrease with …
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From N to P: Examining Structure-Property Relationships of Ammonium- and Phosphonium-Containing Macromolecules
… of phosphonium ionenes. Novel phosphonium gemini surfactants displayed interesting solution properties in aqueous and chloroform solutions. Electrospinning of the phosphonium gemini surfactants created uniform fibers. The synthesis and characterization of sulfonium polyelectrolytes enabled …
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Physical Chemistry of Gemini Surfactant Monolayers
… comprised of two newly synthesized anionic gemini surfactants (Ace(n)-2-Ace(n), n = 11, 17; Figure 1) at the air-water and air-solid interfaces. The study was further aimed at exploring the miscibility and interactions of the Ace(n)-2-Ace(n) surfactants with perfluorotetradecanoic acid …
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Photo-reactive Surfactant and Macromolecular Supramolecular Structures
… scaffolds were electrospun from a low molar mass gemini ammonium surfactant, N,N–-didodecyl-N,N,N–,N–-tetramethyl-N,N–-ethanediyl-di-ammonium dibromide (12-2-12). Cryogenic transmission electron microscopy (cryo-TEM) and solution rheological experiments revealed micellar morphological transitions …
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Efficient Drug and Nucleic Acid Delivery Systems based on Synthetic Amphiphiles with Tuned Oil/Water Interfaces
… and assessment of a pyridinium-based pseudo-gemini surfactant that combined the high nucleic acid packaging capacity of pyridinium lipids with the high transfection efficiency of gemini surfactants while displaying a reduced associated cytotoxic effect. I have analyzed the temperature …