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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH FRONT

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 A
+ Author Affiliations
- Author Affiliations

A 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.


References


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[24]   Destarac M., Deroo S., Lannibois-Dréan H., Sénéchal A., Bzducha W., in Controlled/Living Radical Polymerization: Progress in RAFT, DT, NMP and OMRP, ACS Symposium Series 1024 (Ed. K. Matyjaszewski) 2009, p. 347 (American Chemical Society: Washington, DC).