MADIX Thermoresponsive Amphiphilic Block Copolymers as Stimulable Emulsion Stabilizers
Mathias Destarac A B C D , Aurélie Papon A , Eric Van Gramberen A and Katerina Karagianni AA Rhodia Opérations, Centre de Recherches et Technologies d’Aubervilliers, 52 Rue de la Haie Coq, 93308 Aubervilliers Cedex, France.
B Université de Toulouse, Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée, 118 Route de Narbonne, F-31062 Toulouse, France.
C Centre National de la Recherche, Scientifique, Laboratoire Hétérochimie Fondamentale et Appliquée, Unité Mixte de Recherche 5069, F-31062 Toulouse, France.
D Corresponding author. Email: destarac@chimie.ups-tlse.fr
Australian Journal of Chemistry 62(11) 1488-1491 https://doi.org/10.1071/CH09227
Submitted: 17 April 2009 Accepted: 27 October 2009 Published: 20 November 2009
Abstract
A series of Macromolecular Design by Interchange of Xanthates (MADIX)-derived amphiphilic block copolymers exhibiting lower critical solution temperature behaviour was synthesized and evaluated as silicone oil-in-water emulsion co-stabilizers. It was demonstrated that the cloud point of the block copolymer is mainly controlled by the chemical composition of the N-isopropylacrylamide-based hydrophilic block. The reversible stabilization and destabilization phenomena of the silicone emulsions occurred at a temperature equal to the cloud point of the block copolymer taken alone.
Acknowledgements
The authors of this paper would like to thank Rhodia for financial support of this research.
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