Issue 10, 2011
From the journal:

Soft Matter

SANS, SAXS, and light scattering investigations of pH-responsive dynamic combinatorial mesophases†

Nicolas Jouault,a   Rémi Nguyen,b   Michel Rawiso,b   Nicolas Giuseppone*b  and  Eric Buhler*a  

* Corresponding authors

a Laboratoire Matière et Systèmes Complexes (MSC), UMR 7057, Université Paris Diderot-Paris 7, bâtiment Condorcet, Paris Cedex 13, France
E-mail: eric.buhler@univ-paris-diderot.fr

b Institut Charles Sadron, SAMS research group, UPR 22, 23 rue du Loess, BP 84087, Strasbourg Cedex 2, France
E-mail: giuseppone@unistra.fr

Abstract

The structural variations of dynamic combinatorial mesophases are investigated in dilute aqueous solutions by a combination of small-angle-neutron, X-ray, and light scattering. The supramolecular structures are composed of self-assembled dynamic covalent hydrophobic and hydrophilic blocks (Dynablocks), linked together by reversible and pH-dependent imine bonds. When several Dynablocks compete from a set of constituents, it is possible to tune their molecular associations by pH modulation, which results in structuring variations of the supramolecular self-assemblies. We here demonstrate that even complex supramolecular mixtures of micellar and vesicular Dynablocks libraries can be quantitatively characterized by the complementarity of these three scattering techniques. It becomes thus envisageable for chemists to design very elaborated stimuli-responsive mesophases based on these objects which represent a new class of “smart” soft materials.

Graphical abstract: SANS, SAXS, and light scattering investigations of pH-responsive dynamic combinatorial mesophases

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Article information

DOI
https://doi.org/10.1039/C1SM05164D
Article type
Paper
Submitted
31 Jan 2011
Accepted
10 Mar 2011
First published
11 Apr 2011

Soft Matter, 2011,7, 4787-4800

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SANS, SAXS, and light scattering investigations of pH-responsive dynamic combinatorial mesophases

N. Jouault, R. Nguyen, M. Rawiso, N. Giuseppone and E. Buhler, Soft Matter, 2011, 7, 4787 DOI: 10.1039/C1SM05164D

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