Supramolecular organization of protonated aminosilicones in water Auteur(s): Petitjean Hugo, Guiglion Pierre, In M., Aldrich-Wright Janice R., Castignolles Patrice, Ganachaud Francois, Gaborieau Marianne (Article) Publié: Journal Of Colloid And Interface Science, vol. 408 p.87-93 (2013) Ref HAL: hal-00868292_v1 PMID 23916158 DOI: 10.1016/j.jcis.2013.07.010 WoS: 000323989900013 Exporter : BibTex | endNote 2 Citations Résumé: This study deals with the ionically-driven self-assembly of oligomeric aminosilicones, judiciously protonated with a variety of organic acids. Depending on the length of the silicone and the strength of the associated acids, (inverse) water-in-silicone emulsions, small nanoparticles, or catanionic vesicles were prepared and characterized by conventional (TEM) or original (DIC optical microscopy, DOSY NMR) techniques. For chains longer than about 40 units, a specific PEG-based sulfonic acid was synthesized and used to generate a supramolecular block-like copolymer and ensure fast and efficient emulsification. In all instances, a simple impulse such as pH increase triggered phase separation of the colloidal objects. |