Abstract
The copolymer of styrene-co-acrylonitrile (SAN) was synthesized by the atom transfer radical polymerization (ATRP) using FeCl3-isophthalic acid (IA)/2,2′-azobis(isobutyronitrile) catalyst system under microwave irradiation (MI). Compared with conventional heating (CH), the copolymerization rate was accelerated under MI, and the conversion of monomer rapidly achieved 30% in 38 min for MI relative to 8% for CH under other same conditions. The kinetics results indicated that RATRP of St/AN is a ‘living’/controlled polymerization, corresponding to a linear increase of molecular weights with the increasing of monomer conversion and a relatively narrow polydispersities index (PDI < 1.25) when the conversion is beyond 30%. The resultant SAN was characterized by FT–IR, NMR, and GPC.
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Wang, G., Wu, H. Microwave-assisted controlled copolymerization of styrene and acrylonitrile catalyzed by FeCl3/isophthalic acid. Polym. Bull. 67, 1809–1821 (2011). https://doi.org/10.1007/s00289-011-0510-3
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DOI: https://doi.org/10.1007/s00289-011-0510-3