Abstract
A series of narrow-MMD polymers with the molecular mass from 33 × 103 to 123 × 103 (polydispersity coefficient 1.08–1.16) were synthesized by bulk polymerization of n-butyl acrylate [2,2′-azobis(isobutyronitrile), 60°C] in the presence of a low-molecular-mass RAFT agent, dibenzyl trithiocarbonate. Then, polymerization of acrylic acid was performed in aqueous-alcoholic solution (ammonium persulfate, 70°C) in the presence of the obtained polymers, and a series of n-butyl acrylate–acrylic acid block copolymers with the molecular masses from 22 × 103 to 81 × 103 (polydispersity coefficient 1.07–1.13) were prepared. In aqueous-alcoholic solutions of the synthesized copolymers, there are nanoparticles whose size varies from 5 tо 65 nm and increases with an increase in the molecular mass of the copolymer and in the concentration of water in the solvent.
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Original Russian Text © N.Yu. Shushunova, B.B. Troitskii, S.A. Chesnokov, T.A. Kovylina, M.V. Arsen’ev, A.N. Konev, M.Yu. Zakharina, I.L. Fedyushkin, 2015, published in Zhurnal Prikladnoi Khimii, 2015, Vol. 88, No. 10, pp. 1485-1490.
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Shushunova, N.Y., Troitskii, B.B., Chesnokov, S.A. et al. Direct two-step synthesis of n-butyl acrylate–acrylic acid block copolymer by RAFT polymerization. Russ J Appl Chem 88, 1667–1672 (2015). https://doi.org/10.1134/S1070427215100183
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DOI: https://doi.org/10.1134/S1070427215100183