Abstract
Anionic copolymerization of acrylonitrile with methyl acrylate under the action of the 1,4-diazabicyclo[2.2.2]octane–ethylene oxide initiating system was studied. Similarly to the anionic homopolymerization of acrylonitrile, the copolymerization is accompanied by the intra- and intermolecular chain transfer to the polymer. The influence of the copolymerization conditions on the intensity of the chain transfer leading to the formation of highly branched and hyperbranched copolymers was examined. The acrylonitrile–methyl acrylate copolymerization constants were determined: r1 = 1.25 ± 0.06 and r2 = 0.18 ± 0.07. Quantum-chemical calculations of the thermodynamic parameters of the copolymerization were made.
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Funding
The study was financially supported by the Russian Foundation for Basic Research (project nos. 18-03-00612 and 18-29-17058). The study was performed in accordance with government assignment no. 0089-2019-0008 using the equipment of the Analytical Center for Shared Use at the Institute of Problems of Chemical Physics, Russian Academy of Sciences, and Center for Shared Use “New Petrochemical Processes, Polymer Composites, and Adhesives.”
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Tarasov, A.E., Grishchuk, A.A., Karpov, S.V. et al. Anionic Copolymerization of Acrylonitrile with Methyl Acrylate under the Action of a Novel Initiating System Based on a Bicyclic Tertiary Amine and Ethylene Oxide. Russ J Appl Chem 93, 1009–1018 (2020). https://doi.org/10.1134/S1070427220070101
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DOI: https://doi.org/10.1134/S1070427220070101