New chain transfer agents for reversible addition-fragmentation chain transfer (RAFT) polymerisation in aqueous solution

New chain transfer agents for free radical polymerisation via reversible addition-fragmentation chain transfer (RAFT) were synthesised that are particularly suited for aqueous solution polymerisation. The new compounds bear dithioester and trithiocarbonate moieties as well as permanently ionic group...

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Bibliographic Details
Published in:Polymer (Guilford) 2004-05, Vol.45 (11), p.3615-3626
Main Authors: Baussard, Jean-François, Habib-Jiwan, Jean-Louis, Laschewsky, André, Mertoglu, Murat, Storsberg, Joachim
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polyelectrolytes
Polymer synthesis
Polymerization
Preparation, kinetics, thermodynamics, mechanism and catalysts
Reversible addition fragmentation chain transfer
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Summary:New chain transfer agents for free radical polymerisation via reversible addition-fragmentation chain transfer (RAFT) were synthesised that are particularly suited for aqueous solution polymerisation. The new compounds bear dithioester and trithiocarbonate moieties as well as permanently ionic groups to confer solubility in water. Their stability against hydrolysis was studied, and compared with the one of a frequently employed water-soluble RAFT agent, using UV–Vis-spectroscopy and 1H-NMR measurements. An improved resistance to hydrolysis was found for the new RAFT agents compared to the reference one, providing good stabilities in the pH range between 1 and 8, and up to temperatures of 70 °C.
ISSN:0032-3861
1873-2291
DOI:10.1016/j.polymer.2004.03.081