Batch emulsion polymerization of styrene stabilized by a hydrophilic macro-RAFT agenta

M. Manguian , Maud Save (1) , B. Charleux (2)

1 IPREM - Institut pluridisciplinaire de recherche sur l'environnement et les matériaux
2 LCP - Chimie des polymères

A well-defined homopolymer of 2-(diethylamino)ethyl methacrylate has been synthesized by reversible addition-fragmentation chain transfer (RAFT) polymerization using (4-cyanopentanoic acid)-4-dithiobenzoate as a chain transfer agent. The corresponding protonated homopolymer with a very reactive dithiobenzoate end group has been used as a water-soluble macromolecular chain transfer agent in the batch emulsion polymerization of styrene without any surfactant. The reaction leads to a stable latex, as a result of the in-situ formation of an amphiphilic block copolymer stabilizer, via transfer reaction to the dithioester functions during the nucleation step. The work does not intend to apply controlled free-radical polymerization in an aqueous dispersed system but takes advantage of the RAFT technique to create a well-defined polyelectrolyte, with a high chain-end reactivity

Domaines: Polymères

M. Manguian, Maud Save, B. Charleux. Batch emulsion polymerization of styrene stabilized by a hydrophilic macro-RAFT agenta. Macromolecular Rapid Communications, 2006, 27 (6), pp.399-404. ⟨10.1002/marc.200500807⟩. ⟨hal-01563812⟩