Journal Articles Journal of Colloid and Interface Science Year : 2006

Structural variations in a family of orthodialkoxyarenes organogelators

Abstract

A series of low mass organic gelators (LMOGS) 1 to 6 whose chemical structures have in common an orthodialkoxyarene feature was prepared in order to compare the shape of their fibrillar network as investigated by small-angle neutron scattering (SANS) experiments. All members of the family exhibit a pronounced tendency to bundle formation by merging isolated fibers in extended packets of average diameter >500 Å. Variations of the 2D packing symmetry are observed from hexagonal to square orderings with close derivatives of the reference member 2,3- didecyloxyanthracene (DDOA). Networks in which the fraction of isolated fibers is significant enough to allow for their SANS identification are those for 6,7-dichloro-2,3-didecyloxyanthracene (Cl2DDOA) and 2,3-dodecyloxy-9,10-anthraquinone (5). For this latter, the monodispersity of the cross-sections (thickness = 74 Å) is remarkable and the rectangular shape (b/a ∼ 0.12) accounts for a merging mechanism into anisotropic bundles (ribbons).

Dates and versions

hal-00117070 , version 1 (29-11-2006)

Identifiers

Cite

Pierre Terech, Gilles Clavier, Henri Bouas-Laurent, Jean-Pierre Desvergne, Bruno Demé, et al.. Structural variations in a family of orthodialkoxyarenes organogelators. Journal of Colloid and Interface Science, 2006, 302, pp.Journal of Colloid and Interface Science. ⟨10.1016/j.jcis.2006.06.056⟩. ⟨hal-00117070⟩
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