Nitroxide-mediated radical polymerization of acrylamide in water solution

Bruno Grassl (1) , G. Clisson , Abdel Khoukh (1) , Laurent Billon (2)

1 IPREM - Institut des sciences analytiques et de physico-chimie pour l'environnement et les materiaux
2 IPREM - Institut pluridisciplinaire de recherche sur l'environnement et les matériaux

This study shows that reasonably controlled nitroxide-mediated polymerization of acrylamide is achieved in pure water solution at 120 °C and high concentration (40 wt%), using a combination of a conventional hydrosoluble radical initiator (Vazo56) and a β-phosphonylated nitroxide, SG1. Moreover, some chain extensions can be performed from a polyacrylamide macroinitiator. Under these experimental conditions, we have demonstrated the conservation of the acrylamide structure without hydrolysis side reactions. The physico-chemical characterizations of polymers obtained from this method demonstrates that the controlled growing chain arises as a star-like shape from the hydrophobic core composed of SG1-functionalized polyacrylamide in the presence of a slight excess of SG1. © 2007 Elsevier Ltd. All rights reserved.

Domaines: Chimie

Bruno Grassl, G. Clisson, Abdel Khoukh, Laurent Billon. Nitroxide-mediated radical polymerization of acrylamide in water solution. European Polymer Journal, 2008, 44 (1), pp.50-58. ⟨10.1016/j.eurpolymj.2007.10.019⟩. ⟨hal-01582034⟩