title: Molecular packing parameter in bolaamphiphile solutions: adjustment of aggregate morphology by modifying the solution conditions.
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.
authors.affiliation: 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.
authors.forename: Yun
authors.initials: Y
authors.lastname: Yan
authors.forename: Wei
authors.initials: W
authors.lastname: Xiong
authors.forename: Xiaosong
authors.initials: X
authors.lastname: Li
authors.forename: Ting
authors.initials: T
authors.lastname: Lu
authors.forename: Jianbin
authors.initials: J
authors.lastname: Huang
authors.forename: Zichen
authors.initials: Z
authors.lastname: Li
authors.forename: Honglan
authors.initials: H
authors.lastname: Fu