Jump to main content
Jump to site search

Issue 5, 2009
Previous Article Next Article

Gelation and self-assembly of glutamate bolaamphiphiles with hybrid linkers: effect of the aromatic ring and alkyl spacers

Author affiliations

Abstract

Novel bolaamphiphilic gelators on the basis of L-glutamic acid, which use rigid aromatic substituents together with different lengths of alkyl chains as spacers, were synthesized. Depending on the structure, some of the molecules can gel a broad variety of solvents, from hexane to water/methanol mixture. The corresponding gels were characterized with UV-vis, CD, FT-IR spectroscopy, XRD, atomic force microscopy (AFM) and transmission electron microscopy (TEM). Nanofiber structures were obtained in nearly all the organogels. The results revealed that the introduction of the aromatic ring as well as the variation of alkyl spacer length greatly changes the gelation property and the corresponding gel structures. In pure organic solvents, the hydrogen bonding from amide groups play an important role and the even-odd alkyl chain can affect the gelating and self-assembly. In water/methanol, bolaamphiphiles with odd number methylene units can also form gels with strong π–π stacking working as the driving force. A possible model was proposed to explain the different self-assembly properties of the bolaamphiphiles.

Graphical abstract: Gelation and self-assembly of glutamate bolaamphiphiles with hybrid linkers: effect of the aromatic ring and alkyl spacers

Back to tab navigation

Publication details

The article was received on 11 Aug 2008, accepted on 24 Nov 2008 and first published on 30 Jan 2009


Article type: Paper
DOI: 10.1039/B813932F
Citation: Soft Matter, 2009,5, 1066-1073
  •   Request permissions

    Gelation and self-assembly of glutamate bolaamphiphiles with hybrid linkers: effect of the aromatic ring and alkyl spacers

    T. Wang, Y. Li and M. Liu, Soft Matter, 2009, 5, 1066
    DOI: 10.1039/B813932F

Search articles by author

Spotlight

Advertisements