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The atom transfer radical polymerization of styrene and acrylonitrile using activators regenerated electron transfer (ARGET) has been carried out in N,N-dimethylformamide (DMF) at 90 °C in the presence of air with a catalyst system of FeCl 3 ·6H 2 O/succinic acid using 2-bromoisobutyrate as the initiator and ascorbic acid as the reducing agent. The ARGET ATRP of styrene and acrylonitrile was proved a ‘living’/controlled polymerization such as a linear increase in molecular weights of polymers with monomer conversion and relatively narrow polydispersities (&lt;1.25) when the conversion was beyond 20%. The chain extension experiment was carried out to confirm the controlled manner of the polymerization system. The resultant SAN was characterized by nuclear magnetic resonance and gel permeation chromatography.

ARGET ATRP of copolymerization of styrene and acrylonitrile with environmentally friendly catalyst and ligand