Mixtures of polymerizable surfactants have been employed to select control over interfacial curvature and phase structure, in aqueous micelles, lyotropic mesophases, and water-in-oil microemulsions. These surfactants were 11-(methacryloyloxy)undecyltrimethylammonium bromide (A), dodecyl(11-(methacryloyloxy)undecyl)dimethylammonium bromide (B), and cetyltrimethylammonium 4-vinylbenzoate (C). The single chain A and double chain B have reactive hydrophobic chain tips, whereas the single chain C possesses a polymerizable vinyl benzoate hydrophilic counterion. Aqueous micelles, composed of mixtures of these surfactants, can be polymerized to yield single-phase, stable solutions. Polymerization was confirmed by disappearance of characteristic vinyl signals in the 1H NMR spectra, and line broadening, as would be expected in polymerized micelles. Furthermore, small-angle neutron scattering (SANS) indicates that micelle structures were broadly retained after polymerization. SANS has shown that these polymerized structures persist below the critical micelle concentration of the nonpolymerized system. With lyotropic mesophases, polarizing light microscopy coupled with SAXS indicates retention of the lamellar (Lα) phase after polymerization and, for hexagonal (H1) phases, evidence for long-range order in the polymerized sample. Finally, films in water-in-oil microemulsions composed of A and B surfactant mixtures were also studied. After polymerization, NMR indicated around 35% conversion to the surface-active polymer. SANS showed that the droplet size may be tuned by film composition and that the parent droplet structure was retained after polymerization.

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The chemical separation is used to reduce the quantity of potentially toxic or hazardous materials discharged to the environment. In addition, separations that lead to recycle, recovery, or reuse of materials also prevent discharge. It is can assists in resolving some of the environmental challenges, so it became more important for researchers, in particular, environmental specialists. Hence, this article aimed to collection information about the chemical separation to help the researchers to resolve the environmental problems. Overall, it can concluded that the extraction is the first step to separate the desired substance from the raw materials and there are various methods for extraction such as sublimation, distillation method and solvent extraction. Correspondently, there are many types of separation processes, the most widely used method is the chromatography method.

Using anionic surfactant sodium alkyl epoxy ethylene carboxylate as structure-oriented agent mesoporous titanium dioxide was direct prepared at ambient temperature via hydrolysis precipitation. The synthesized products were characterized by XRD and N2-adsorption. XRD analysis indicates that the TiO2 exhibits anatase phase and its pore disappears at 550 °C calcinations temperature. N2-adsorption results shows that high surface area of 324 m2/g, pore volume of 0.211 cm3/g and pore size of 3.5 nm were obtained in no heat-treated sample.