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Self-Organization of Bolaamphiphile Bearing Biphenyl Mesogen and Aspartic-Acid Headgroups

2008; American Chemical Society; Volume: 112; Issue: 9 Linguagem: Inglês

10.1021/jp710721u

1932-7455

Senlin Chen, Bo Song, Zhiqiang Wang, Xi Zhang,

Polymer Surface Interaction Studies

A novel bolaamphiphile (DCBP-10-L-Asp) that bears the biocompatible aspartic acid as hydrophilic heads has been designed and synthesized. It is found that DCBP-10-L-Asp can self-organize into supramolecular fiber-like structures in aqueus solution. These fiber-like structures have a good thermal stability that can bear a temperature as high as 110 °C, because of the collective interaction, including hydrogen bonding, π−π interaction, and van der Waals interaction. The hydrogen bonding is indispensable to the formation of the supramolecular fiber-like structures, which is confirmed by adding urea or Cu2+ ion into the solution or by changing the pH of the solution to break the hydrogen bonding. It is anticipated that this line of research may provide a way to fabricate biocompatible nanomaterials.