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Article Dans Une Revue Journal of the American Chemical Society Année : 2021

Azo-Derived Symmetrical Trithiocarbonate for Unprecedented RAFT Control

Résumé

Bis(2-cyanopropan-2-yl)trithiocarbonate (TTC-bCP) is a new symmetrical trithiocarbonate with the best leaving group ever reported for reversible addition–fragmentation chain transfer (RAFT) polymerization. We propose an elegant route to obtain TTC-bCP starting from 2,2′-azobis(2-methylpropionitrile) (AIBN) as a donor of the 2-cyanopropan-2-yl group. TTC-bCP allowed the preparation of a high-molar-mass (Mn ≈ 135 kg mol–1) methyl methacrylate–n-butyl acrylate–methyl methacrylate triblock copolymer with unprecedented control (D̵ = 1.04) in reversible-deactivation radical polymerization. Rheology measurements of this triblock copolymer showed a typical thermoplastic elastomer behavior with a steady rubbery plateau up to 120 °C.
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Dates et versions

hal-03566047 , version 1 (23-08-2022)

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Oleksandr Ivanchenko, Maksym Odnoroh, Sonia Mallet-Ladeira, Marc Guerre, Stéphane Mazières, et al.. Azo-Derived Symmetrical Trithiocarbonate for Unprecedented RAFT Control. Journal of the American Chemical Society, 2021, 143 (49), pp.20585-20590. ⟨10.1021/jacs.1c10031⟩. ⟨hal-03566047⟩
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