Physicochemical properties and surface tension prediction of mixed surfactant systems: Triton X-100 with dodecylpyridinium bromide and Triton X-100 with sodium dodecylsulfonate was written by Song, Shi-Li;Hu, Zhi-Guo;Wang, Quan-kun;Cheng, Gang;Liu, Xin-Hua. And the article was included in Journal of Dispersion Science and Technology in 2008.Synthetic Route of C17H30BrN This article mentions the following:
Dependences of the surface tension of aqueous solutions of ionic (dodecylpyridinium bromide, sodium dodecylsulfonate) and nonionic (Triton X-100) surfactants and their mixtures on total surfactant concentration and solution composition were studied, and the surface tension of the mixed systems were predicted using different Miller’s model. It was found how to select the model for calculation of ω is corresponding to the degree of the deviation from the ideality during the adsorption of mixed surfactants. The compositions of micelles and adsorption layers at air-solution interface as well as parameters (βm, βads) of headgroup-headgroup interaction between the mols. of ionic and nonionic surfactants were calculated based on Rubingh model. The parameters (B1) of chain-chain interaction between the mols. of ionic and nonionic surfactants were calculated based on Maeda model. The free energy of micellization calculated from the phase separation model (ΔG2m), and by Maeda’s method (ΔG1m) agree reasonably well at high content of nonionic surfactant. The excess free energy ΔGadsE and ΔGmE (except α = 0.4) for TX-100/SDSn system are more neg. than that TX-100/DDPB system. These can be probably explained with the EO groups of TX-100 surfactant carrying partial pos. charge. In the experiment, the researchers used many compounds, for example, 1-Dodecylpyridin-1-ium bromide (cas: 104-73-4Synthetic Route of C17H30BrN).
1-Dodecylpyridin-1-ium bromide (cas: 104-73-4) belongs to pyridine derivatives. The pyridine ring occurs in many important compounds, including agrochemicals, pharmaceuticals, and vitamins. Pyridine derivatives are also useful as small-molecule α-helix mimetics that inhibit protein-protein interactions, as well as functionally selective GABA ligands.Synthetic Route of C17H30BrN