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Micellar RAFT/MADIX Polymerization
Cécile Barthet1,2, James Wilson3, Arnaud Cadix3
1Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Paul Sabatier, 118 route de Narbonne, 31062 Toulouse Cedex 9, France.
Abstract:
We apply the RAFT/MADIX technique to the micellar copolymerization of acrylamide and 2-acrylamido-2-methylpropanesulfonic acid sodium salt with a hydrophobic monomer, 4-tert-butylstyrene. The resulting polymers have well-controlled molecular weight distributions. In the presence of sodium dodecyl sulfate, the polymerization is better controlled by an oligo-acrylamide chain transfer agent (PAm7-XA1) than by Rhodixan A1. The associative character of the polymer is maintained under RAFT polymerization conditions and chains can be extended to form block copolymers with associative segments.
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