Molecular packing parameter in bolaamphiphile solutions: adjustment of aggregate morphology by modifying the solution conditions |
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Authors: | Yan Yun Xiong Wei Li Xiaosong Lu Ting Huang Jianbin Li Zichen Fu Honglan |
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Institution: | State Key Laboratory for Structural Chemistry of Unstable and Stable Species, College of Chemistry and Molecular Engineering, and College of Life Science, Peking University, Beijing, 100871, People's Republic of China. |
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Abstract: | The geometrical rule of molecular packing parameters in a bolaamphiphile solution was tested with experimental results. By modifying the solution conditions to change the molecular packing parameters, the morphology of the aggregate was successfully manipulated in a single-chain bolaamphiphile, disodium phenyl-1,4-bis (oxyhexanoate) (i.e., C6PhC6Na2 solution). Micelle-vesicle-tube transformation was observed by changing the pH and the addition of NaBr or octanol. In the mixed systems of oppositely charged bola/surfactants, the molecular packing parameter's role is related to the mixing ratio. |
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