Abstract

As a preliminary study, self-assembly behaviors of heterogemini surfactant in aqueous solution are explored tentatively by means of dissipative particle dynamics simulation. Five kinds of heterogemini molecules are involved, and a variety of novel morphologies have been obtained. Results based on detailed comparisons among themselves and with traditional symmetric gemini surfactant show the proportion of hydrophilic to hydrophobic chain lengths in one monomer is the most important, more difference between proportions in the two monomers can induce more diverse self-assembly morphologies. The second important is the hydrophilic chain length, in which a small change can lead to obvious difference in self-assembly behaviors. While the length of hydrophobic chain has a less important influence, only the concentration for self-assembly morphologies appearing can be affected by its change. The microscopic morphology of heterogemini surfactant in its self-assembly structure can be embodied through its radius of gyration. Our simulation results can undoubtedly provide a theoretical guide to further research towards self-assembly behaviors of heterogemini surfactants and practical applications of these matters.

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