Preparation and dilute solution properties of model gemini nonionic surfactants

Communication: Striking dependence of diffusion kinetics in Ag–Cu nanoalloys upon composition and quantum effects

“…Fitting our data with an exponential revealed that ϕ CMC ∝ exp (−N phob ) for all investigated surfactant compositions. This behavior is in stark contrast with previous experiments of molecular 8,9 and polymeric surfactants, [10][11][12] where a significant flattening of the CMC was observed with increasing N phob . In previous studies it was surmised that this (apparent) weakening of the CMC is strongly correlated with the collapse of the solvophobic tail group in the solution phase.…”

“…This behavior has been verified experimentally for a wide variety of surfactants with sufficiently small N phob . [5][6][7] However, a significantly weaker dependence on N phob was found for ionic 8 and nonionic 9 surfactants with increasingly long solvophobic blocks. A similar trend was also observed for amphiphilic diblock copolymer systems.…”

Solvent-dependent nanostructures of gels of a Gemini surfactant based on perylene diimide spacer and oligostyrene tails

“…A comprehensive review has been published by Menger and Keiper [3]. Non-ionic Gemini surfactants with alkyl tails, oligo (ethyleneoxide) head groups and a C 6 spacer were studied by FitzGerald et al [14,15].…”

Effect of Sodium Salicylate on the Properties of Gemini Surfactant Solutions

“…Hence, many efforts have been made to design and synthesize new classes of gemini surfactants, and moreover, to investigate their aggregation behaviors by tuning the properties of the spacer, the head groups, or the side chains [6][7][8]. For gemini surfactants, the nature of the spacers have important effect on the self-assembly behavior of gemini surfactant besides those of alkyl chains [6][7][8].…”

“…For gemini surfactants, the nature of the spacers have important effect on the self-assembly behavior of gemini surfactant besides those of alkyl chains [6][7][8]. Therefore, the self-assembly behavior of gemini surfactants is more complicated than that of conventional single-chain surfactants.…”