Abstract
The polymerization of MMA mediated by symmetric trithiocarbonate as a reversible addition-fragmentation chain-transfer agent is studied. It is shown that the process proceeds according to the two-stage pseudoliving radical mechanism. The polymeric reversible addition-fragmentation chain-transfer agent is more efficient than its low-molecular-mass analog. The use of the polymeric reversible addition-fragmentation chain-transfer agent makes it possible to synthesize narrowly dispersed homopolymers of MMA and related copolymers with a controllable molecular mass. Both chain-transfer agents have practically no effect on the initial rate of copolymerization but allow weakening or even suppression of the gel effect at high conversions.
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Original Russian Text © E.V. Chernikova, P.S. Terpugova, A.A. Baskakov, A.V. Plutalova, E.S. Garina, E.V. Sivtsov, 2010, published in Russian in Vysokomolekulyarnye Soedineniya, Ser. B, 2010, Vol. 52, No. 3, pp. 487–497.
This work was supported by the Russian Foundation for Basic Research, project no. 08-03-00269.)
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Chernikova, E.V., Terpugova, P.S., Baskakov, A.A. et al. Pseudoliving radical polymerization of methyl methacrylate in the presence of S,S′-bis(methyl-2-isobutyrate) trithiocarbonate. Polym. Sci. Ser. B 52, 119–128 (2010). https://doi.org/10.1134/S1560090410030012
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DOI: https://doi.org/10.1134/S1560090410030012