Supramolecular organization of protonated aminosilicones in water

JOURNAL OF COLLOID AND INTERFACE SCIENCE

卷:408

Article

Petitjean, Hugo¹  Guiglion, Pierre^2,3  In, Martin⁴  Aldrich-Wright, Janice R.²  Castignolles, Patrice³  Ganachaud, Francois^1,5,6  Gaborieau, Marianne² 

[1] Univ Paris 06, CNRS, UMR7610, Lab Chim Polymeres, F-94200 Ivry, France

[2] Univ Western Sydney, Nanoscale Org & Dynam Grp, Sch Sci & Hlth, Penrith, NSW 2751, Australia

[3] Univ Western Sydney, ACROSS, Sch Sci & Hlth, Penrith, NSW 2751, Australia

[4] Univ Montpellier 2, CNRS, UMR5221, Lab Charles Coulomb, F-34095 Montpellier 5, France

[5] Univ Lyon, F-69003 Lyon, France

[6] INSA Lyon, IMP, UMR5223, F-69621 Villeurbanne, France

关键词: Aminosilicone;    Ionic pairs;    Self-assembly;    Colloids;    Nanoparticles;    Inverse emulsions;    Reversible association;   

DOI  :  10.1016/j.jcis.2013.07.010

来源: Elsevier

【 摘 要 】

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. (C) 2013 Elsevier Inc. All rights reserved.

【 授权许可】

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